Question
A and B together can do a piece of work in 15 days which
B and C together can do in 20 days. After A has been working at it for 3 days and then by B for 11 days & then C finishes it in 20 days. In how many days B could finish the work?Solution
A + B = 15 days B + C = 20 days Work = L.C.M (15, 20) = 60 A + B = 4 B + C = 3 (A + B) × 3 + (B + C) × 8 + 12C = 60 4 × 3 + 3 × 8 + 12C = 60 12 + 24 + 12C = 60 12C = 60 – 36 12 C = 24 C = 2 Now, B + C = 3 B + 2 = 3 B = 1 ∴ B takes = 60/1 = 60 days
What will come in the place of question mark?
What number should replace the question mark?Â
C/JQ : B/GT : : Z/CX : ?
M/14 : O/12 : : U/6 : ?
Study the given pattern carefully and select the number that can replace the question mark (?) in it.
First row: 14, 12, 108
Second row:...
Find the missing term in the following series:
43 44 ? 69 185
...Find the missing number.
F : 216 : : I : ?
In each of the following questions select the related letter/word/figure/number from the given alternatives.
JRH : ? : : KOV : 51Â
Find the next term / numbers in the given series?
54, 46, 40, 36, ?
Relevant for Exams:
