Ques:- if length of a rectangle is incr by 20% and width is decr by 20% then area
Recent Answer : Added by Admin On 2020-05-17 11:59:46:
we know,
area=b*h
b gets increased by 20% i.e (b+0.20b)
h gets decreased by 20% i.e (h-0.20h)
rewriting the equation(area=b*h),
area=(b+0.20b)*(h-0.20h)
area=b(1+0.20)*h(1-0.20)
area=b(1.20)*h(0.80)
area=b*h*(1.20)*(0.80)
area=b*h*(0.96)
i.e new area=0.96 times the original area
if 100% was the original area,it has decreased to 96%
so,100%-96%= 4%
Ques:- In a class , except 18 all are above 50 years. 15 are below 50 years of age. how many people are there
Recent Answer : Added by 9074743593 On 2021-07-29 16:19:36:
None of these
Ques:- Which one of the following numbers is divisible by 3?
A. 2345678
B. 2876423
C. 4006020
D. 9566003
Recent Answer : Added by Ramyadevi On 2021-10-22 09:13:10:
The correct ANS: option C
Ques:- Do you have a method or a strategy to measure the quality of your work?
Recent Answer : Added by DK BOSS On 2021-07-30 16:26:33:
Employee Performance Standards. Employee performance measurements can determine an employee’s compensation, employment status or opportunities for advancement.
Ques:- Im aruna. im coming from Anagapathur near pallavaram. Now i studying in Bsc (IT) , annamalai university in chennai.
Ques:- A coffee shop blends 2 kinds of coffee,putting in 2 parts of a 33p. a gm. grade to 1 part of a 24p. a gm.If the mixture is changed to 1 part of the 33p. a gm. to 2 parts of the less expensive grade,how much will the shop save in blending 100 gms.
Recent Answer : Added by Ashu On 2021-01-30 01:20:12:
Initially (2*33 + 1*24)/(2+1) = 30p a gm
So, cost for 100g = 100*30 = 3000p
Later, (1*33 + 2*24)/(1+2) = 71/3 p a gm.
So, cost for 100g = 100*(71/3) = 2366.67p
He saves 3000 – 2366.67 = 633.33p
Concept of weighted average.
Ques:- The area of a base of a cone is 30 cm2. If the height of the cone is 6cm, evaluate its volume?
Ques:- Find out the wrong number in each sequence: 10, 14, 28, 32, 64, 68, 132
A. 28
B. 32
C. 68
D. 132
Recent Answer : Added by Anubhav Tiwari On 2022-03-09 16:31:38:
132
Ques:- A mixture of 150 liters of wine and water contains 20% water. How much more water should be added so that water becomes 25% of the new mixture?
Ques:- For which post you have came here?
Ques:- What amount does Kiran get if he invests Rs. 18000 at 15% p.a. simple interest for four years?
Ques:- Describe your yesterday
Ques:- The banker’s discount on Rs. 1600 at 15% per annum is the same as true discount on Rs. 1680 for the same time and at the same rate. What is the time?
Ques:- How many 13 digit numbers are possible by using the digits 1,2,3,4,5 which are divisible by 4 if repetition of digits is allowed?
Recent Answer : Added by Admin On 2022-09-29 15:07:51:
Therefore, the number of possible 13 digit numbers using 1, 2, 3, 4, 5 which are divisible by 4
= x 3 + x 2
= (3 + 2)
=
= 244140625 ways
Ques:- Tell me your three good qualities?
Ques:- Find the 3 digit number. Third digit is square root of first digit. Second digit is sum of first and third digits. Find the number
Recent Answer : Added by Nathan Abebe On 2022-04-02 07:00:00:
264
Ques:- Father F has 5 sins, P,Q,R,S,T not necessarily in this order. Two are of same age. The eldest and the youngest cannot be twins. T is elder to R and younger to Q and S has three older brothers.
Recent Answer : Added by Grace On 2020-11-25 15:02:54:
QTP(twins)SR
Ques:- Self details
Ques:- Do you know any body in Srei Equipment Fin. Pvt. Ltd?
Ques:- What is your greatest achievement?
Ques:- Feasibility about travelling, Future studies plan, etc
Ques:- In the following figure:A B C D E F G H IEach of the digits 1, 2, 3, 4, 5, 6, 7, 8, and 9 is:a)Represented by a different letter in the figure above.b)Positioned in the figure above so that each of A + B + C,C + D +E,E + F + G, and G + H + I is equal to 13.Which digit does E represent?
Ques:- A man owns 2/3 of a computer service buroue business and sells 3/4 of his share for $75000.What is the value of the business?
Recent Answer : Added by Umayer On 2021-12-04 15:01:01:
$150000
Ques:- The sale price sarees listed for Rs.400 after successive discount is 10% and 5% is?
Ques:- A and B can do a piece of work in 8 days. B and C can do it in 12 days and A and C in 16 days. Working together they will complete the work in how many days?
Ques:- If s(a) denotes square root of a, find the value of s(12+s(12+s(12+ …… upto infinity.
Ques:- Two trains are on same track and they are coming toward each other. The speed of first train is 50 KMs/h and the speed of second train is 70 KMs/h. A bee starts flying between the trains when the distance between two trains is 100 KMs. The bee first flies from first train to second train. Once it reaches the second train, it flies back to the second train ? and so on until trains collide. Calculate the total distance traveled by the bee. Speed of bee is 40 KMs/h. .
Recent Answer : Added by DK BOSS On 2021-07-15 09:17:12:
Answer: 66.67 km approx.
Solution:
Let the first train A move at u km/h.
Let the second train B move at v km/h.
Let the distance between two trains be d km
Let the speed of bee be b km/h
Therefore, the time taken by trains to collide = d/(u+v)
Now putting all the known values into the above equation, we get,
u = 50 km/hr
v = 70 km/hr
d = 100 km
b = 80 km/hr
Therfore, the total distance travelled by bee
= b*d/(u+v)
= 80 * 100/(50+70)
= 66.67 km (approx)
Ques:- If you come onboard, give me a general idea of what your first overall tasks will be as far as starting a quality effort.
we know,
area=b*h
b gets increased by 20% i.e (b+0.20b)
h gets decreased by 20% i.e (h-0.20h)
rewriting the equation(area=b*h),
area=(b+0.20b)*(h-0.20h)
area=b(1+0.20)*h(1-0.20)
area=b(1.20)*h(0.80)
area=b*h*(1.20)*(0.80)
area=b*h*(0.96)
i.e new area=0.96 times the original area
if 100% was the original area,it has decreased to 96%
so,100%-96%= 4%