Applications (Word problem)

Q.

A number is such that, it is as much greater than 65 as it is less than 91. Find the number.

Q. The present age of Prateek and Arjun are in the ratio 2 : 3. After 4 years, the ratio of their ages will be 4 : 5. The present age of Prateek would be ______.

1. 2
2. 4
3. 6
4. 8

Q.

The highest of three plants A, B and C in a garden are in the ratio $\text{2:3:5}$ Their mean height is $\text{30 cm}$. Find the height of plant B.

If another plant D is added to the garden, the mean height of the four plants becomes $\text{33 cm}$, find the height of plant D.

Q.

Solve the following

$\frac{5y-4}{8}-\frac{y-3}{5}=\frac{y+6}{4}$

Q. 56 is divided into two parts in such a way that $\frac{6}{5}$ of one part is equal to $\frac{2}{3}$ of the other. What would be the smaller part?

Q.

A positive number is 5 times another number. If 21 is added to both the numbers, then one of the new numbers becomes the other new number. What are the numbers?

Q.

Half the students of a class are dancing and three-fourths of the remaining are playing cricket. If the remaining 9 students are studying in the library, then find the total number of students in the class.

1. 72

2. 96

3. 80

4. 84

Q.

Twenty years from now, Arjun will become three times as old as he is now. His present age is

___ yrs.

Q.

If the sum of three consecutive multiples of 9 is 108, then the average of multiples is

___

Q. If the sum of three consecutive numbers is 39, then find those numbers.

Q. Two prizes are to be distributed in a quiz contest. The value of the second prize is 5/6 of the value of the first prize. If the first prize is Rs. 3000, the second prize is Rs.___.

Q. 15 years from now, Shristi’s age will be four times her present age. What is Shristi's present age?

1. 10
2. 5
3. 15
4. 20