Question
A sphere of radius 21 cm is melted and recast to form
βnβ numbers of smaller cuboids of dimension 21 cm Γ 11 cm Γ 7 cm. Find the value of βnβ.Solution
According to question;
(4/3) Γ (22/7) Γ 21 Γ 21 Γ 21 = n Γ 21 Γ 11 Γ 7
Or, n = 24
24, 12, 22.5, 45, 157.5, 708.75
Find the wrong number in the given number series.
3, 4, 10, 33, 136, 680
In each of the following number series, one term is wrong. Find the wrong term.
4, 7, 12, 21, 28, 39, 52
324, 314, 294, 264, 224, 184
32, 16, 24, 60, 207, 945
124, 186, 375, 930, 2790, 9765
Find the wrong number in the given number series.
65, 91, 130, 182, 286, 429
12, 10, 23, 65, 265, 1289Β
120, 126, 135, 145, 170, 200
- Find the wrong number in the given number series.
60, 75, 101, 150, 210, 285