DSSSB Special Education Teacher Paper 2013 – Arithmetical & Numerical Ability

Delhi SSB Special Education Teacher Previous Year 2013 Paper – Arithmetical & Numerical Ability

Salaries of Ram and Shyam together amount to Rs.12,000. Ram spends 80% of his salary and Shyam spends 90% of his salary. If their savings are the same, then what is the salary of Shyam ?
(a) Rs.2,000
(b) Rs.4,000
(c) Rs.8,000
(d) Rs.10,000

X owns 20% shares of a company. Y owns all the shares of the same company not woned by x or Z. Z owns 20% more shares of the same company than what is owned by X. If Z has 36000 shares, then how many shares are owned byu Y ?
(a) 30,000
(b) 36,000
(c) 84,000
(d) 1,50,000

The average of a series of 20 numnbers is 50. The difference between the highest number and the smallest number in the series is 76. If the highest and the smallest numbers are excluded from the series, then the average is 48. The lowest number of the original series is
(a) 25
(b) 27
(c) 30
(d) 42

An investor invested in two types of bonds. Bond A and Bond B, in the ratio of 3 : 7. The interest rate on Bond A is 12% and on Bond, 10% If he gets an interest of Rs. 18,000 from Bond A, then the amount of investment in Bond B is
(a) Rs.150,000
(b) Rs.3,00,000
(c) Rs.3,50,000
(d) Rs.5,00,000

If x + 8 = -15/x, then x is equal to
(a) 5 or 3
(b) -5 or 3
(c) -3 or 5
(d) 3 or 5

A driver has to drive another 120 km to complete his trip. So fat, he has driven at a speed of 60 kmph for 3 hours. How much time should he take in completing the remaining part of his journey so as to attain an average speed of 50 kmph for the entire journey ?
(a) 1 hour
(b) 2 hour
(c) 3 hour
(d) 4 hour

A container is 3/4 full. If 6 liters of water is removed, then the container i s1/2 full. The total capacity of the container is
(a) 4 litres
(b) 6 litres
(c) 16 litres
(d) 24 litres

A specific type of cloth costs Rs.50 a metre and a buyer gets 8% discount on the total cost, if he buys 125 metres or more. The cost of 625 metres of cloth is
(a) Rs.25,000
(b) Rs.27,250
(c) Rs.28,750
(d) Rs.30,250

A’s salary is 40% of B’s salary which is 35% of C’salary. What percentage of C’s salary is A’s salary ?
(a) 5%
(b) 10%
(c) 15%
(d) 20%

The cost of Type 1 rice is Rs.15 per kg and Type 2 rice is Rs.20 per kg. If both Type 1 and 2 are mixed in the ratio of 2 : 3, then the price per kg of the mixed variety of rice is
(a) Rs.18.00
(b) Rs.18.50
(d) Rs.19.00
(d) Rs.19.50