Ques:- About the number of pairs which have 16 as their HCF and 136 as their LCM, we can definitely say that
A. Only one such pair exists
B. No such pair exists
C. Only two such pairs exist
D. Many such pairs exist
Recent Answer : Added by Admin On 2022-09-23 18:49:19:
B. No such pair exists
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Ques:- If the length of the train is 100m and its speed is 60km/h and another length of the train is 80km and its speed is 50km then its travelling in opposite direction. Find out the time of crossing each other(m/s)?
Recent Answer : Added by Syed Faizan On 2021-12-13 17:58:35:
43.69
Because the total distance will be =100+80000m=80100m. Thus two train coming towards, so the speed will be increase. speed will be =60+50=110km/h, The time of crossing will be 43.69 minutes.
Ques:- Evaluate the LCM of 455, 117, 338 .
Ques:- Find out the wrong number in the series:
4, 9, 16, 25, 32, 49
A. 16
B. 25
C. 32
D. 49
Recent Answer : Added by Enyonam Dora On 2023-06-12 13:05:40:
Please explain to me why the answer is C. Thank you
Ques:- A circle and a rectangle have the same perimeter. The sidesof the rectangle are 18 cm and 26 cm. What will be the areaof the circle?
Recent Answer : Added by Admin On 2020-05-17 12:03:54:
perimeter of rectangle = 2(l+b)
given l abd b as 18 cm and 26 cm
therefore perimeter of rectangle = 2(44)
perimeter of circle = 2*pi*r
given 2*pi*r=2(l+B)
i.e, 2*(22/7)*r= 2(44)
(22/7)*r=44
r=14 cms
area of the circle = pi*r*r
=(22/7)*14*14
=616 sqcm is the answer
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Ques:- A cistern can be filled by a tap in 4 hours while it can be emptied by another tap in 9 hours. If both the taps are opened simultaneously, then after how much time will the cistern get filled?
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Ques:- All men are vertebrates. Some mammals are vertebrates. Which of the following conclusions drawn from the above statement is correct. 1. All men are mammals 2. All mammals are men 3. Some vertebrates are mammals. 4. None
Recent Answer : Added by Sujanya On 2022-03-18 09:18:24:
3
Ques:- Find out the wrong number in a given series.
1, 2, 8, 33, 148, 760, 4626
A. 2
B. 33
C. 148
D. 760
Recent Answer : Added by Admin On 2022-09-23 19:05:54:
D. 760
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Ques:- If we change the word ‘ddosszm’ into ‘central’ then what will be the changed word for ‘rtjbl’ ?
Recent Answer : Added by Aziz Khan On 2022-05-17 09:08:39:
Quick
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Ques:- There are 12 boys and 15 girls, How many different dancing groups can be formed.
Recent Answer : Added by tony On 2022-01-17 15:32:27:
3 groups
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Ques:- The ratio fo Boys to Girls is 6:4. 60% of the boys and 40% of girls take lunch in the canteen. What % of class takes lunch in canteen.
Recent Answer : Added by vivin On 2022-03-09 16:46:02:
assume the ratio 6:4 to be 60:40
boys taking lunch in canteen=60% of 60=36
Girls taking lunch in the canteen=40% of 40=16
Total boys and girls taking lunch in the canteen=52
Total students we assumed is 60+40=100
Therefore percentage of boys and girls taking lunch in the canteen=(52/100)*100=52%
Ques:- Your area of interest in studies.
Ques:- A company figured it needed 37.8 sq.feet of carpot for its reception room. To allow for waste, it decided to order 20% more material than needed. Fractional parts of sq.feet cannot be ordered. At Rs.9/- a sq.feet, how much would the carpet cost?
Recent Answer : Added by Admin On 2020-05-17 12:00:22:
414 Rs
1.2*37.8=45.36=46 sq.feet
46*9=414 RS
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Ques:- A 4 digit no may consist of the digits 6,2,7,5 where none of the nos are repeated.Find the possible no of combinations divisible by 36?
Recent Answer : Added by Admin On 2020-05-17 12:02:15:
no combinations is there because a number divisible by 36
also divisible by its divisors anu.sum of 4 digits=20,whis
is not multiple of 3.so it is cannot divisible by 3
Ques:- A man can row upstream at 25 kmph and downstream at 35 kmph, and then find the speed of the man in still water?
Recent Answer : Added by Nandini On 2021-10-16 13:20:48:
B. No such pair exists