RRB GROUP D QUANT QUIZ

In a $\triangle \mathrm{ABC}, \angle \mathrm{B}=90^{\circ}, \mathrm{AB}=4$ and $B C=3$, then find the value of $\sin A$.

A manufacturer of chair wants to earn $25 \%$ profit on total manufacturing cost after giving a discount of $33 \%$ on MRP. But due to fire in the store he lost $15 \%$ of chairs manufactured by him, then find at what discount percentage should he sell the remaining chair. If he still wants to earn $25 \%$ profit on total manufacturing cost

In 2 years at simple Interest the Principal increases by $12 \%$. what will be the compound interest earned (in Rs.) on Rs 90,000 in 2 years at same rate?

$40 \%$ of the cost price of an article is equal to $30 \%$ of the selling price of same article. What is the profit percent?

what is the probability that a leap year will have 53 sundays and 53 Tuesday: ?

In an equilateral $\triangle \mathrm{ABC}$, the medians $\mathrm{AD}, \mathrm{BE}$ and $\mathrm{CF}$ intersect each other at point $\mathrm{G}$, if the area of triangle $\mathrm{BDG}$ is $6 \sqrt{3} \mathrm{~cm}^{2}$, then find the length of $\mathrm{AD}$ (in $\mathrm{cm}$ ).

Direction: Read the given table carefully and answer the question that follows:

The data given, shows the number of cars (Automatic and manual) sold by five companies in the year 2020 , and ratio of sold units of Automatic to manual cars of each company for same year.

Find the ratio of total Automatic cars sold by Maruti and Hyundai together to that to manual cars sold by Kia and Ford together.

The average score in Mathematics of 90 students of section A and B of class IX was 63 . The number of students in A were 10 more than those in B. The average score of students in A was $30 \%$ more than that of students in B. The average score of students in B is:

What should come in place of question mark (?) in the following question ?

$\frac{8+8 \times 9-4-6}{237 \times 4-215 \times 4}=?$