Life Mathematics — Practice

Question 1

An article costing ₹250 is sold for ₹200. Find the loss%.

Accepted Answer

Loss = 50; Loss% = (50/250)×100 = 20%.

Question 2

Find the SI on ₹2000 for 3 years at 5% p.a.

Accepted Answer

SI = (2000 × 3 × 5)/100 = ₹300.

Question 3

Find the CI on ₹5000 for 2 years at 10% p.a.

Accepted Answer

A = 5000(1.1)² = 6050; CI = ₹1050.

Question 4

If 8 pipes fill a tank in 6 hours, how long for 12 pipes?

Accepted Answer

8 × 6 = 12 × t → t = 4 hours (inverse proportion).

Question 5

A shopkeeper gives 20% discount on an item marked ₹500. Find the selling price.

Accepted Answer

Discount = 100; SP = 500 − 100 = ₹400.

Question 6

An item bought for ₹400 is sold for ₹500. Find the profit%.

Accepted Answer

Profit% = (100/400)×100 = 25%.

Practice — Life Mathematics