Q14. Present age of Reema and Shalini are in the ratio 5:8. Four years from now the ratio of their will be 2:3. Find their present age.
Q15. The sum of the digits of a two digit number is 10. If the number formed by reversing the digits is greater than the original number by 18, find the original number.
Q16. The denominator of a rational number is greater than its numerator by 5. If the numerator is 5 increased by 8 and the denominator is decreased by 1, the new number becomes 3 original number. 6 2 of one part is equal to
Q17. Divide 28 into two parts in such a way that of the other. 5 3 5 / 5 Find the
Q18. The sum of three consecutive even numbers is 78. Find the numbers.
Q19. The sum of two numbers is 35. Their difference is 13. Find the numbers.
Q20. The three angles in a triangle are in the ratio 2:3:4. Find the measure of each angle,
Q21. Two complementary angles differ by 10°. Find the angles.
Q22. Two supplementary angles differ by 22º. Find the angles.
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Step-by-step explanation:
Present ages of P & Q =5x÷8x
After 4 years
Their ages will be (5x+4)÷(8x+4) which is 2÷3
(5x+4)÷(8x+4)=2÷3
15x+12=16x+8
x=4
Q's age will be 8×4=32
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Louis M. Rappeport
, B.S. from University of California, Berkeley
Answered July 4, 2018
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