The average age of a class of 24 girls is 16 years. If 6 new girls having average age of 12 years join the class, then the average age of the class becomes:
Total age of 24 girls = 24 × 16 = 384 years Total age of 30 girls = 384 + (6 × 12) = 456 years Therefore new average age = 456/30 = 15.2 years
If the numerator of a fraction is increased by 40% and the denominator is decreased by 20%, then the value of the fraction becomes 21/16. Then tell the ...
There is a fraction whose denominator is 5 more than its numerator. If the numerator is increased by 10 and denominator is decreased by 4, the fraction ...
Numerator of a fraction is 4 less than the denominator. If 6 and 7 are added to numerator and denominator of a fraction respectively, then fraction beco...
Ravi has read 4/5 of a book while Saumya has read only 5/8 of the book she is reading. Both, however, have another 150 pages of their respective books ...
Which of the following fractions lies between 3/7 and 8/9?
12.5% of 96 =?
The value of 
