Question
A can complete a work in 15 days, and B can complete the
same work in 20 days. If they work together for 6 days, what fraction of the work is left?Solution
Work done by A in 1 day = 1/15 Work done by B in 1 day = 1/20 Work done by A and B together in 1 day = (1/15 + 1/20) = 7/60 Work done in 6 days = 6 × 7/60 = 7/10 Fraction of work left = 1 - 7/10 = 3/10 Correct answer: d
Select the number that will replace the question mark (?) in the following series.
35, 38, 43, 50, 61, 74, ?
What number should come in the place of question mark?
Select the missing number from the given responses.
Select the missing number from the given responses.
Study the given pattern carefully and select the number from among the given options that can replace the question mark (?).
Find the missing numbers.
/RRB_NTPC_MT_7_100...JPG)
In the following question, a series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
In each of the following questions, select the related number from the given alternatives:
8/15 : 2/5 : : 16/21 : ?
Study the given matrix carefully and select the number from among the given options that can replace the question mark (?) in it.
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