Question

3. Fourth-fifths of a number is ten more than two-thirds of the number. Find the number.
4. 24 is divided into two parts such that 7 times the first part added to 5 times to second part makes 146. Find each part.
5. The digit in tens place of two digit number is three times than that in the units place. If the digits are reversed the new number will be 36 less than the original number. Find the original number.
6. In a fraction twice the numerator is 2 more than the denominator. If 3 is added to the numerator and to the denominator the new fraction is 2/3. Find the original number.
7. Rakhi’s mother is 4 times as old as Rakhi. After 5 years her mother will be 3 times as old as she will be then. Find their present ages.
8. Find three consecutive odd numbers whose sum is 147.

Answer 1

3. 4x/5=10+2x/3
Dividing both sides with 15
or, 12x=150+10x
or, 2x= 150
or, x=75