[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
[B].
[C].
[D].
Answer: Option D
Explanation:
[B].
[C].
[D].
Answer: Option D
Explanation:
Let number of notes of each denomination be x.
Then, x + 5x + 10x = 480 16x = 480 x = 30.
Hence, total number of notes = 3x = 90.
[B].
[C].
[D].
Answer: Option B
Explanation:
Let the number of 20-paise coins be x. Then, number of 25-paise coins = (324 – x).
Therefore 0.20 x x + 0.25 (324 – x) = 71 20x + 25 (324 – x) = 7100
5x= 1000 x = 200. Hence, number of 25-paise coins = (324 – x) – 124.
[B].
[C].
[D].
Answer: Option D
Explanation:
Let R, G and B represent the number of balls in red, green and blue boxes respectively.
Then, .
R + G + B = 108 …(i),
G + R = 2B …(ii)
B = 2R …(iii)
From (ii) and (iii), we have G + R = 2x 2R = 4R or G = 3R.
Putting G = 3R and B = 2R in (i), we get:
R + 3R + 2R = 108 6R = 108 R = 18.
Therefore Number of balls in green box = G = 3R = (3 x 18) = 54.
[B].
[C].
[D].
Answer: Option D
Explanation:
[B].
[C].
[D].
Answer: Option D
Explanation:
[B].
[C].
[D].
Answer: Option D
Explanation:
Number of cuts made to cut a roll into 10 pieces = 9.
Therefore Required number of rolls = (45 x 24)/9 = 120.
[B].
[C].
[D].
Answer: Option A
Explanation:
Let the ten’s digit be x. Then, unit’s digit = (11 – x).
So, number = 10x + (11 – x) = 9x + 11.
Therefore (9x + 11) + 27 = 10 (11 – x) + x 9x + 38 = 110 – 9x 18x = 72 x = 4.
Thus, ten’s digit = 4 and unit’s digit = 7.
Hence, required number = 47.
[B].
[C].
[D].
Answer: Option D
Explanation:
Originally, let number of women = x. Then, number of men = 2x.
So, in city Y, we have : (2x – 10) = (x + 5) or x – 15.
Therefore Total number of passengers in the beginning = (x + 2x) = 3x = 45.
[B].
[C].
[D].
Answer: Option A
Explanation: