Question

1. The length and the breadth of a rectangle are in the ratio 12:5. If the length of the rectangle
is 48cm, then the breadth of the rectangle is
(A) 20cm
(B) 30cm
(C) 40cm
(D) 50cm

2.P and Q's expenditures are in proportion to the ratio of their incomes. P's income is 32000
and his expenditure is 24000. If Q's expenditure is 36000, then find the income of Q.
(A) 42000
(B) 39000
(C) 48000
(D) 45000​

Answer 1

Answer:

1. 12:5::48:x

Since,product of means=product of extremes

12x=48×5

x=48×5÷12

x=4×5

x=20

Breath=20cm

Option A is correct

2. 32000:x::24000:36000

Since,product of means=product of extremes

32000×36000=24000x

x=32000×36000/24000

x=48000

Q's income=Rs48000

Option C is correct