Average of Company B = (11 × 13 - 3 × 21)/8 => (143 - 63)/8 = 80/8 = 10 years
A sum of Rs. 2400 was divided among three persons X, Y and Z such that if their shares were diminished by Rs, 5, Rs. 10 and Rs. 15 respectively, the rem...
There are 15 numbers such that average of first 12 numbers is 30 while the average of last five numbers is 50. Find the 12th number, if the ratio betwee...
Raju and Ramesh started a business with investing capital in the ratio of 9:16. After 5 months, Raju reduced his 1/3 portion of the capital and after 8 ...
In a class, 3/5 of the students are girls and rest are boys. If 2/9 of the girls and 1/4 of the boys are absent. What part of the total number of studen...
In a class, the number of students studying English and Math is in the ratio 3:4. If 12 additional students join the Math group, the ratio of students s...
The ratio of males and females in a zoo is 3:5 respectively and the percentage of children among males and the percentage of children among females are ...
A solid diamond falls and break into three pieces whose weights are in the ratio of 4 : 3: 2. The value of each piece is directly proportional to the cu...
The ratio of number of balls in bags A & B is 3:4. Seven Balls are taken from bag B and are dropped in bag A, number of balls are equal in each bag now...
If the SP of book is 5 times of the discount. If percentage discount and percentage profit is equal. Then find the ratio of discount and CP?
