NTPC CBT 2 QUANT QUIZ 2

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Question 1:

If $A=\left[\frac{3}{7}\right.$ of $\left.4 \frac{1}{5} \div \frac{18}{15}+\frac{17}{24}\right]$ of $\left[\frac{289}{16} \div\left(\frac{3}{4}+\frac{2}{3}\right)^{2}\right]$ then the value of $8 \mathrm{~A}$ is

Question 2:

In a 72 litre mixture of acid and water, ratio of acid and water is $5: 3 .$ How much water is added in the mixture so that ratio of acid and water becomes equal.

Question 3:

A train running at a speed of $\frac{120\times~km} {h}$ takes 48 seconds to pass a tunnel. Also it takes 30 seconds to pass a man walking at $\frac {12\times km}{h}$ in the same direction in which the train is going. Find the length of the train and the length of the tunnel.

Question 4:

A and B can do a certain work in 14 days and 15 days, respectively. They work together for 5 days. C alone completes the remaining work in 5 days. A and C together can complete $4 \frac{2}{3}$ part of the same work in:

Question 5:

The ratio between the number of men and women in an office is $4: 7$. If the number of women working in the office is 63 . Find the number of men working in an office

Question 6:

If $\mathrm{p}^{3}+\mathrm{q}^{3}: \mathrm{p}^{3}-\mathrm{q}^{3}=133: 117$ Find $\mathrm{p}: \mathrm{q}$

Question 7:

A woman invests Rs. 100 at the start of each year at 5% compound interest per annum. How much will her investment be, at the end of the 2nd year?

Question 8:

The surface area (in sq.cm.) of a sphere with radius $1.5 \mathrm{~cm}$ is: (Take $\pi=\frac{22}{7}$ )

Question 9:

Apurva travelled equal distances at speeds of 10km/hr , 20km/hr , and 6 km/hr, and took a total time of 19 minutes. Find the total distance travelled in km.

Question 10:

Two numbers are in ratio 3: 8 and their HCF is 7 . Their LCM is: