10 years ago the average age of a family of 4 members was 24. In the meantime two children were born with a gap of two years. What is the age of the younger child if the average age of the family is the same as it was 10 years ago?
A shopkeeper sold one tablet and one smartphone for ₹ 12000 each. On the smartphone he lost 25%, and gained 20% on the price of tablet. What is his total loss or gain?
Biku and Mahtre fought election. Biku got 55% votes and 25% votes were declared invalid. Population of village is 6000. Find the votes given to Mahtre.
A shopkeeper sells a TV for ₹ 3000 at a gain of 15%. He sells a different TV at a loss of 10%. Overall he neither gains nor loses. What is the cost price or SP of the second TV?