Ques:- In a class of 60 students, the number of boys and girls participating in the annual sports is in the ratio 3 : 2 respectively. The number of girls not participating in the sports is 5 more than the number of boys not participating in the sports. If the number of boys participating in the sports is 15, then how many girls are there in the class? (1) Data inadequate (2) 20 (3) 25 (4) 30 (5) None of these
Recent Answer : Added by Admin On 2020-05-17 12:03:57:
let no. of boys not participating be x
then the no. of girls not participating = x+5
no. of boys : girls participating = 3:2
given no.of boys participating = 15
therefore, the ratio is now 15:y(say)
then 3:2 = 15 : x
on solving 3/2 =15/y ie.., 3y =30 we get y =10
hence no. of girls participating =10
therefore total no of students paricipating = 15+10=25
total no of students in class =60 given
hence no. of students not participating = 60-25=35
therefore x+(x+5)=35
2x=30
x=15
therfore no of girls not participating =15+5=20
therefore total no of girls in class = no of girls
participating + no of girls not participating
=10+20
=30 is the answer
Ques:- A cyclist drove one kilometer, with the wind in his back, in three minutes and drove the same way back, against the wind in four minutes. If we assume that the cyclist always puts constant force on the pedals, how much time would it take him to drive one kilometer without wind?
Recent Answer : Added by Zwelethu Nzulu On 2021-08-28 11:27:00:
3 minutes
Ques:- Do you know local langaguge
Ques:- Your profile is suited for this job?
Ques:- The H.C.F and L.C.M of two numbers are 44 and 264 respectively. If the first number is divided by 2, the quotient is 44. The other number is
A. 66
B. 132
C. 264
D. 528
Recent Answer : Added by Shiva Akhil On 2023-06-09 12:28:38:
let,first num be x and second num be y
hcf =264
lcm=44
given equation
x/2=44 i.e x=88
product of 2 numbers is equal to lcm*hcf
88*y=44*264
y=132
Ques:- A man misses a bus by 40 minutes if he travels at 30 kmph. If he travels at 40 kmph, then also he misses the bus by 10 minutes. What is the minimum speed required to catch the bus on time?
Recent Answer : Added by DK BOSS On 2021-07-15 08:55:21:
the answer is 45 km/h
Define x:
Let the total distance be x.
Find the time needed in terms of x for speed at 30 km/h:
Find the time needed in term of x for 40 km./h:
Find the difference in time:
Solve x:
Find the total time needed to for the whole journey:
Given that he was 40 mins late:
Find the minimum speed needed:
Answer: The minimum speed is 45 km/h
Ques:- 49 race cars and no two have the same speed. Now give you 7 tracks with equal length to find the 25th fastest car. At least how many races are needed.(no time recorder)
Ques:- Find the smallest number which when divided by 13 and 16 leaves respective remainders of 2 and 5.
Recent Answer : Added by Abhishek Gupta On 2022-08-24 17:03:32:
Let ‘N’ is the smallest number which divided by 13 and 16 leaves respective remainders of 2 and 5.
Required number = (LCM of 13 and 16) – (common difference of divisors and remainders)
= (208) – (11) = 197.
Ques:- One side of a rectangular field is 4 m and its length along diagonal is 5 m. What is the area of the field?
Recent Answer : Added by Aditya D On 2022-09-21 16:49:44:
area is given by Area of Rectangle = Length of Rectangle*(sqrt((Diagonal of Rectangle^2)-(Length of Rectangle^2)))
so substituting we get area=4*(sqrt((25-16)))
area=4*(sqrt(9))
since area cannot be negative hence we take sqrt of 9 as 3 (as sqrt of 9 is 3 and -3 as well)
area=4*3=12m^2
Ques:- What you will be Good carrier
Ques:- A rope of which a calf is tied is increased from 12 m to 23 m, how much additional grassy ground shall it graze?
Recent Answer : Added by anit On 2021-10-08 16:31:41:
1208.9
Ques:- 7/8 of 3/7 of a number is equal to 25% of 45% of another number. What is the ratio of the first and the second numbers respectively? (a) 3 : 7 (b) 9: 10 (c) 3 : 10 (d) 3 : 2 (e) None of these
Recent Answer : Added by DK BOSS On 2021-07-17 06:23:21:
the answer is 3:10
explanation:
let the first number be x
and the second number be y
(7/8)((3/7)x)=(25/100)((45/100)y) given
ie.., 21x/56= 9y/80
on solving we get x:y= 3:10
is the answer
Ques:- What is your role in this company?
Ques:- Two trains travel from NewYork to Washington and the travel takes 5 hours journey time.Trains leave from Washington for every hour and an half hour and the trains leave from NewYork every hour. If the train leaves from new york , Then how many trainsfrom washington cross this train on its way?
Recent Answer : Added by Subramani Raju On 2021-07-23 15:26:02:
5 trains
Ques:- A die is thrown twice what is the probability that you get same number
Recent Answer : Added by Admin On 2020-05-17 12:02:24:
A die is thrown twice n(s)=36
The probability of getting same number is (1,1)(2,2)(3,3)
(4,4)(5,5)(6,6) i.e n(A)=6
Ans. P(A)=n(A)/n(s)
= 6/36
=1/6.
So, The Answer is 1/6
Ques:- If the project already started and u hired in the middle of the project?what will u do?
Ques:- About personal information, team handling, achievements and work profile
Ques:- Pavan travelled for 11 hours. He covered the first half of the distance at 30 kmph and remaining half of the distance at 25 kmph. Find the distance travelled by Pavan.
Ques:- Who is the first lady Prime Minister of india?
Recent Answer : Added by dilshad On 2021-03-26 17:27:29:
Indira Gandhi
Ques:- Introduce yourself with family and educational background
Ques:- Tell me the most memorable day of ur life and why is it so?
Ques:- 7^101+18^101 is a multiple of a.15 b.25 c.35 d.45
Recent Answer : Added by Khagesh On 2022-10-17 15:58:03:
25
Ques:- A is sister of B. C is brother of D. D is sister of A. Howis B related to D?
Recent Answer : Added by Admin On 2020-05-17 12:03:21:
b)Brother or Sister
Because Bis related to either Brother or Sister.
Ques:- How many experaice you have
Ques:- A, B and C rent a pasture. A puts 10 oxen for 7 months, B puts 12 oxen for 5 months and C puts 15 oxen for 3 months for grazing. If the rent of the pasture is Rs.175, how much must C pay as his share of rent?
A. Rs. 45
B. Rs. 50
C. Rs. 55
D. Rs. 60
Recent Answer : Added by MANOJ M On 2021-10-07 15:40:52:
45
Ques:- What are your outside interests?
Ques:- A part of certain sum of money is invested at 9% per annum and the rest at 12% per annum, if the interest earned in each case for the same period is equal, then ratio of the sums invested is?
Recent Answer : Added by uma On 2022-02-20 07:56:22:
3;4
Ques:- Ram sold two bicycles, each for Rs.990. If he made 10% profit on the first and 10% loss on the second, what is the total cost of both bicycles?
Ques:- if the length of the rectangle is reduced by 20% and breath is increased by 20 % what is the net change ?
Recent Answer : Added by Admin On 2020-05-17 12:03:10:
trick
(r/10)*(r/10)
(20/10)*(20/10)
4% decrese
Ques:- What are some things you particularly liked about your last job?
let no. of boys not participating be x
then the no. of girls not participating = x+5
no. of boys : girls participating = 3:2
given no.of boys participating = 15
therefore, the ratio is now 15:y(say)
then 3:2 = 15 : x
on solving 3/2 =15/y ie.., 3y =30 we get y =10
hence no. of girls participating =10
therefore total no of students paricipating = 15+10=25
total no of students in class =60 given
hence no. of students not participating = 60-25=35
therefore x+(x+5)=35
2x=30
x=15
therfore no of girls not participating =15+5=20
therefore total no of girls in class = no of girls
participating + no of girls not participating
=10+20
=30 is the answer