RRB GROUP D QUANT QUIZ

Find the sum of 100 terms of the series $1+3+5+4+9+5+\ldots \ldots . .$

Find the standard deviation if the variance of a data set is 169.

The CI on Rs.10000 in 2 years at 4% per annum, the interest being compounded half-yearly is:

CP of 15 apples is equal to SP of 12 apples. While the discount on 8 apples is equal to the profit earned on selling 6 apples. Find the difference between $\%$ of profit and discount?

When a number divided by $5,4,3$ successively it gives remainder 4,3,1 respectively and last quotient is 2 , if the same number is divided by 15 find the remainder?

Find the Value of the given expression:

$8 \frac{4}{5}-\left[4 \frac{3}{4} \div\left\{9 \frac{1}{2}-\frac{1}{3}+\frac{1}{6}\right\} \div \frac{6}{8} \times \frac{4}{19}\right]$

If $(x+20) \%$ of 250 is $25 \%$ more than $x \%$ of 220 , then $10 \%$ of $(x+50)$ is what per cent less than $15 \%$ of $x$ ?

The base of a right pyramid is an equilateral triangle of side $10 \sqrt{3} \mathrm{~cm}$. If the total surface area of the pyramid is $270 \sqrt{3} \mathrm{~cm}^{2}$, its height is?

Read the following questions and decide which of the equations are sufficient to answer the question.

What is the value of $x$ ?

Equation

1. $x^{2}-18 x+81=0$

2. $ p+q+r=0$