Question
P alone can finish a piece of work ‘M’ in 6 days
while Q takes 3 days to finish it alone. P, Q and R working together can finish the work ‘N’ which is 12 times of work ‘M’ in 6 days. How long will R take to finish work ‘N’, when working alone?Solution
 Let the work ‘M’ = 6 units (LCM of 6 and 3) Efficiency of P = 6/6 = 1 units Efficiency of Q = 6/3 = 2 units Efficiency of P, Q and R = (6 × 12)/6 = 12 units per day Efficiency of R = 12 – (1 + 2) = 9 units per day Time taken by R to finish work ‘N’ = 72/9 = 8 days
1) loss
2) profits
3) losses
4) fall
5) rise
(i) The Constitution (Sixty-first Amendment) Act, 1989 has __________ the voting age from 21 years to 18 years for the Lok Sabha and the Legislative Ass...
Read the passage and fill in the blanks.
Honesty is a quality that builds trust and respect. An honest person does not (16) ______ facts for pe...
Educate your children and let them learn to live with ________.
 (A) elevation      (B) dignity       (C) respect ...
- In the following questions, each sentence has two blanks. Choose the appropriate set of words for the blanks that best fits in the context of the sentence....
Select the correctly spelt word to fill in the blank.
The ________________ of the worksheets is not an easy job.
(a) The lady seemed to be quite disturbed,as she was ____________about her husband's health.
(b) Sheena came up to me and expressed that she had ...
The unruly behaviour of the parliamentarians____________the speaker.Â
When they found out their secret plan had been exposed, they realized someone had _______.
To counter this a cross party committee of MP's suggested _______________ subsidized housing to teachers willing to work in deprived schools.     ...
