Question
A circlular wire of radius 56 cm is bent in the form of
a rectangle whose sides are in the ratio of 13 : 9. The smaller side of the rectangle isSolution
Perimeter of rectangle = Circumference of circular wire 2(a + b) = 2πr 2(9x + 13x ) = 2 × 22/7 × 56 2× 22x = 2 × 22/7 × 56 x = 8 cm. Smaller side = 9 × 8 = 72 cm.
Find the wrong number in the given number series.
27, 388, 712, 996, 1243, 1452
18Â Â Â Â Â 45 Â Â Â Â Â 90 Â Â Â Â Â Â 235Â Â Â Â Â 450 Â Â Â Â Â 1125 Â Â Â Â Â 2250
...A series is given below which contains a wrong term.
(4c – a – 10) , (3b + a – 1) , (bc + a – 1) , (ac + 7b) , (ab + ac + bc + 18) , (3b<...
Find the wrong number in given series.
918, 943, 992, 1073, 1194, 1388
 7    12     33    126    635  Â
1, 4, 20, 126, 1026, 10170
42, 85, 172, 343, 687, 1375
Find the wrong number in the given number series.
7, 12, 19, 28, 39, 53, 67
3, 15, 35, 63, 99, 143
6.5, 11, 22, 25.5, 51, 54.5
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