NAT I Computer Science Quantitative

A factory employs M men and W women. What part of its employees are women ?

• W/(W+M) A
• W/M B
• (W+M)/M C
• M/W D

(190)² - (150)²=?

• 58600 A
• 13600 B
• 1360 C
• 1600 D

A man opens a bookstall with a capital of Rs. 25000. In three month his capital amounts to rupees 27500. What is the increase percent ?

• 1% A
• 10% B
• 20% C
• 7% D

If the sum of the interior angles of a regular polygon measures up to 1440 degrees, how many sides does the polygon have ?

• 10 sides A
• 8 sides B
• 12 sides C
• 9 sides D

t is an integer greater than 5. The expression that must represent an odd integer is 

• t(t+1) A
• 3t-1 B
• t² C
• 2t-3 D

The annual decrease in the population of a city was 10% and the present number of inhabitants is 1620. What was the population 2 years hence?

• 20 A
• 400 B
• 2000 C
• 1000 D

If 'x' and 'y' are positive and 1/x=3+1/y is 'x' greater than 'y'?

• Yes A
• No B
• It cannot be determined C
• They are equal D

The average height of a class of 14 boys is 5.3 feet. A new boy admitted to the class, the new average of height now becomes 5.25. What is the height of the new boy ?

• 4.55 A
• 5.0 B
• 6.0 C
• 3.5 D

Find the sum of money, 11% of which is Rs. 1650.

• 150 A
• 3300 B
• 25000 C
• 15000 D

Mr.Kashif got an average of 50 in 6 tests. What should he get in the next test to attain the average of 60?

• 120 A
• 60 B
• 100 C
• 70 D

The population of a city increased in two years from 25,000 to 30,000: find the increase percent during the time.

• 10% A
• 20% B
• 40% C
• 5% D

How many integers between 28 and 98 are exactly divisible by 7 ?

• 9 A
• 11 B
• 12 C
• 8 D

If abc= 2 and a = c then b =

• a² A
• 1/2a B
• 2/a² C
• 2-a² D

One half of the employees of Al Karim Co. earn salaries above Rs. 18,000 monthly. One third of the remainder earn salaries between Rs. 15,000 and Rs. 18,000. What part of the staff earns below Rs. 15,000 ?

• 2/3 A
• 1/3 B
• 2/5 C
• 3/5 D

√256÷√64=?

• 1/4 A
• 26/8 B
• 16 C
• 4 D

t is an integer than 5. The expression that must represent an odd integer is:

• 1(t+1) A
• 9t-1 B
• t² C
• 2t-3 D

• 50 m A
• 64 m B
• 72 m C
• 84 m D

224√ 0.88 =? x 1122

• 20.02 A
• 20.2 B
• 19.3 C
• 2.27 D

A man bought 27 packets of Chilli Milli at $280 each, 9 packets of Chilli Milli at $320 each and 6 packets of Chilli Milli at $360 each. Find the average price per packet of Chilli Milli.

• $250 A
• $300 B
• $400 C
• $380 D

One-sixth of a day is what part of the time between 3 p.m. Monday and 3 a.m. Thursday of the same week?

• 1/10 A
• 1/18 B
• 1/15 C
• 1/12 D