Question

if the cost of 10 pens is Rs 150, find the cost of 7 pens?

Answer 1

GIVEN THAT,

COST OF TEN PENS = ₹150

COST OF ONE PEN = ₹150/10=₹15

COST OF SEVEN PENS = ₹15×7 =₹105

HOPE IT HELPS FOLLOW

Answer 2

Step-by-step explanation:

10 pens ...rupees 150

7pens. ?

first find cost of one pen

10= 150

1 = ?

cross multiply

150/10=15 rupees

1 pen costs rupees 15

now find for 7 pens

multiply cost of one pen into 7

15 rupees x7 =rupees 100

therefore 7 pens cost 105 rupees