Work done by A in one day is half of the work done by B in one day. Work done by B is half of the work done by C in one day. If C alone can complete the work in 7 days, in how many days can A, B and C together complete the work?
Question
Work done by A in one day is half of the work done by B in one day. Work done by B is half of the work done by C in one day. If C alone can complete the work in 7 days, in how many days can A, B and C together complete the work?
Work done by C in one day = (1/7)
Work done by B in one day = (1/2) ×(1/7) = (1/14)
Work done by A in one day = (1/2) ×(1/14) = (1/28)
Work done by A+B+C in 1 day = (7/28) = ¼
Hence required no. of days in which A, B and C together can complete the work = 4 days
In the following number series only one number is wrong. Find out the wrong number.
11 18 29 42 59 80 101
If ONE + TWO + FOUR = SEVEN then S + E + V + E + N = ?
What should come in place of the question mark (?) in the following number series?
9 62 ? 1854 7415 22244
The simple interest accrued on an amount of Rs. 25,000 at the end of three years is Rs. 7,500. What would be the compound interest accrued on the same amount at the same rate in the same period?
The ages of Sameera and Sravani are in the ratio of 7:3. After 6 years the ratio of their ages will be 5:3. What is the difference in their ages?
By how much is 3/5 of 735 greater than 2/3 of 633?
The sum of four consecutive even numbers is 60. What is the sum of the squares of these numbers?
Naveen started a business investing Rs. 12,000. After 5 months Anubhav joined him with a capital of Rs. 9,000. At the end of the year the total profit was Rs. 4,416. What is the share of profits of Naveen?
Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to that group?
In certain code LONG is written as 5123 and GEAR is written as 3748. How is LANE written in that code?