Question
Find the curved surface area of cone whose height is 3 m
and radius is 4 m. (approximate value) (The value of π is 22/7)Solution
Given -h=3m and r= 4m The surface area of the cone = πrl So now – l= √ (9+16) =5 CSA of cone = (22/7) ×4×5 =12.5×5 =62.5 m2 (Approx)
24, 42, 60, ?, 96, 114
What will come in place of (?) question mark in the given number series.
10, 17, 26, 37, 50, ?
660, 653, 639, 618, 590, ?
What will come in place of the question mark (?) in the following series?
75, 219, 388, ?, 809, 1065168, 178, ?, 273, 400, 618, 963
60   61    57   66    ?      75    39
...What will come in place of the question mark (?) in the following series?
2, 5, 14, 41, 122, 365, ?
81, 83, 87, 95, 111, ?
What will come in place of the question mark (?) in the following series?
400, 841, 1202, ?, 1716, 1885
64, 66, 69, 74, 81, ?