NAT I Engineering Quantitative

816 - 288÷ 24 =?

• 22 A
• 828 B
• 528 C
• 804 D

x + y =17 and x=2, then value of y?

• 13 A
• 15 B
• 19 C
• 10 D

(160 - 130) (270 - 240) / 2250÷ 50 =?

• 4/3 A
• 2/3 B
• 45 C
• 20 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

A word processing operator typed 44 words per minute. After practice, the operator's speed increased to 55 words per minutes. By what percent did the operator's speed increase?

• 25% A
• 50% B
• 15% C
• 20% D

(44 x 3) + 128 + 120 / 9.5 - 94.7

• 380 A
• 10 B
• 76.12 C
• 100 D

If the ratio of x : y is 9 : 7, then x+y is

• 16 A
• 2 B
• 1 C
• None D

Ay-b=c,dy what is 'y' in terms of 'a', 'b' and 'c'?

• (c+b) / (a+d) A
• (c-b) / (a+d) B
• (c-b) / (a+d) C
• (c+b) / (a-d) D

A word processing operator typed 44 words per minute. After practice, the operator's speed increased to 55 words per minutes. By what percent did the operator's speed increase ? (25%)

• 25% A
• 50% B
• 15% C
• 20% D

12% of x =360

• 250 A
• 100 B
• 400 C
• 3000 D

If abc = 2 and a =c then b=

• a² A
• 1/2a B
• 2/a² C
• 2-a² D

The death rates for three diseases are :

Disease R 2 People out of 10,000

Disease S 13 People out of 1,000,000

Disease T 9 People out of 100,000

Disease R 2 People out of 10,000

What is the combined death rate for the three diseases?

• 123 out of 1,000,000 A
• 42 out of 10,000 B
• 42 out of 1000,000 C
• 303 out of 1,000,000 D

How many tens are equal to the number whose hundreds, tens, and units digits are a,b,c, respectively?

• b A
• a+1/10b+1/100c B
• 10a+b+c C
• 10a+b+c/10 D

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

• 1/10 A
• 1/18 B
• 1/15 C
• 1/12 D

72 + 679 + 1439 + 537 + ?=4036

• 1309 A
• 1208 B
• 2308 C
• 2423 D

The population of 8 villages is 900, 750, 1100, 1050, 835, 1250, 555, and 630. Find teh population of Ninth village if the average population of Nine villages is 900.

• 1200 A
• 1050 B
• 1030 C
• 7070 D

• 15 A
• 30 B
• 45 C
• 72 D

A man spent 10% of his money .After spending 60% of the reminder he has Rs.72 left. How much had he in the start?

• 10 A
• 100 B
• 200 C
• 400 D

If x + 3y =7 and 2x + y =5 then value x/y is?

• 1/2 A
• 1/3 B
• 2/5 C
• 8/9 D

If 10 tractors are needed to plow a field in 4 hours, how many tractors are needed to plow the field in 5 hours?

• 32 A
• 4 B
• 16 C
• 8 D