Question

c) The cost of 1 pen is Rs 10 and the cost of 1 pencil is Rs 8. Find the total cost of 5 pens and 4 pencils.​

Answer 1

82Rs

Explanation:

let p be pen

let n be pencil

1p=10Rs

1n=8Rs

10×5=50

8×4=32

50+32=82Rs

Answer 2

cost of 1 pen = ₹10

cost of 5 pens = 5×10 = ₹ 50

cost of 1 pencil = ₹8

cost of 4 pencil = 8×4 = ₹ 32

Total cost = 50 + 32 = ₹82