1. The average age of 24 boys in a class is 11. When the teacher’s age is included, the average increases by one. What is the age of the teacher ? (3)
(1) 34 yrs
(2) 42 yrs
(3) 36 yrs
(4) 48 yrs
2. If a number is multiplied by three-fourth of itself, the value thus obtained is 10800. What is that number ? (3)
(1) 210
(2) 180
(3) 120
(4) 160
3. The selling price of 10 oranges in the price of 13 Oranges. Then the profit percentage is? (1)
(1) 30%
(2) 10%
(3) 13%
(4) 3%
4. If the sum of two numbers be multiplied by each number separately, the product so obtained are 247 and 114. The sum of the numbers is? (1)
(1) 19
(2) 20
(3) 21
(4) 23
5. What single discount is equivalent to two successive discounts of 20% and 15%? (4)
(1) 35%
(2) 32%
(3) 34%
(4) 30%
