UP SI MATHS QUIZ-60

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Question 1:

$\mathrm{A}, \mathrm{B}$ and $\mathrm{C}$ can do a work in 20,30 and 8 days. They all work together for 3 days, then C quits. Remaining work will be finisheld by $\mathrm{A}$ and $\mathrm{B}$ in how many days?

Question 2:

Find the value of k in the number 3426k , if the number is divisible by 6 but not divisible by 5 .

Question 3:

When a number is increased by 45 , it becomes $118 \%$ of itself. What is $75 \%$ of the given number?

Question 4:

If a cuboid of dimensions $16 \mathrm{~cm} \times 6 \mathrm{~cm} \times 9 \mathrm{~cm}$ is melted and formed into two cubes of same size, What will be the ratio of the surface area of the cuboid to the total surface Area of two cubes?

Question 5:

A mixture of 36 liters Contains milk and water in the ratio of $7: 5$. How much water should be added to it So that the ratio of milk and water becomes $1: 1$?

Question 6:

If in 2 years at simple Interest the principal increases by $24 \%$ What will be the compound Interest earned (in Rs.) on Rs. 36,000 in 2 years at the same Rate? (in Rupees)

Question 7:

Two cyclist A and B start cycling at $20 \mathrm{~km} /$ $\mathrm{h}$ and $24 \mathrm{~km} / \mathrm{h}$ towards the same direction in a cycle marathon. How far they would be from each other after $5 \frac{1}{2} \mathrm{hr}$.

Question 8:

Salary of $\mathrm{A}$ is $47.5 \%$ of the total salary of $A$ and $B$. B saves $50 \%$ of his salary and total savings of $A$ and $B$ is $40 \%$ of their total income. The expenditure of A is Rs.9450. What is the total salary of $\mathrm{A}$ and $\mathrm{B}$ ?

Question 9:

A certain distance is covered at a certain speed. If half of this distance is covered in double the time, the ratio of the two speeds is:

Question 10:

What must be subtracted from each term of 15 : 19 so that the new numbers are in the ratio $3 : 4$?