Question
A and B can complete work in 9 days, while B and C can
complete the same work in 18 days. When working together A, B and C, can finish the same work in 8 days. How many days will it take for A and C to complete the work together?Solution
A total amount of Rs. 1220 is to be divided between two friends, Ram and Ranjan, in the ratio (7/9):(11/12). What is the difference between the amounts ...
- The mean proportional of 10 and 40 is _____.
The ratio of number of boys to number of girls of a class was 2:5. If 4 girls were absent, the ratio becomes 3:7. Find total number of students in the c...
The average height of three boys is 170 cm. If their heights are in the ratio 6:4:7, what is the height of the tallest boy?
If A varies directly as B and inversely as C and A = 8, B = 2 and C = 5, what is the value of A when B = 6 and C = 5?
There are 850 students in four houses of a school i.e. (red, white, yellow and blue) . Ratio of number of students in red house to that in blue house is...
Given that (4A = 5B = 7C), determine the ratio (B:C:A).
In a classroom, the ratio of boys to girls is 3:1. The average marks of all the girls are given as z - 6 , while the overall average marks for all the s...
Ratio of number of book to number of pen sold by a shopkeeper is 25:18, respectively while ratio of number of pen to number of pencil sold by the same s...
Ratio of number of book to number of pen sold by a shopkeeper is 21:12, respectively while ratio of number of pen to number of pencil sold by the same s...
