If the length of each of the sides of three square garden's plots is increased by 50 percent, by what percent is the sum the areas of the three plots increased?
a)
125%
b)
150%
c)
200%
d)
375%
Click here to see answer
Description:
Let, the length of each side of the garden = 100
Area = 1002 = 10000
Area of 3 square = 3×10000 = 30000
50% increase of length = 100+100×50/100 = 150
Area = 1502 = 22500
Area of 3 square = 3×22500 = 67500
Increasing area = 67500-30000 =37500
Percentage = (37500×100)/30000=125%
This question was added in the model test of 7 Combined bank: General officer preliminary model test
Do you want to attend this model test? If yes, then click here