Question
In how ways can the selection be made so that a
particular member is always excluded?   There are 5 members in a delegation which is to be sent abroad. The total no. of members is 11.ÂSolution
As 1 person is always excluded, members are to be chosen out of 10 persons. ∴ Reqd. no. of ways = 10C_5 =  (10 ×  9 × 8 × 7 × 6)/(5 × 4 × 3 × 2) =  252
More Permutation and combination Questions
(13)2 - 3127 ÷ 59 = ? x 4
Solve the following equation.
143 + 14.3 + 1.43 + 0.143 + 0.0143 =?
Simplify the following expressions and choose the correct option.
(45% of 640) ÷ 8 + (3/4 of 96) = ?
55.55% of 30000 – 1111 = ? × 1111
Find the simplified value of the following expression:
[{12 + (13 × 4 ÷ 2 ÷ 2) × 5 – 8} + 13 of 8]
24 × √? + 4008 ÷ 24 = 40% of 200 + 327
∛21952 × 44 = ? × 14
26 2 – 13% of 400 + (529 ÷ 23 2 ) = ? 2Â
- What will come in place of (?) in the given expression.
[45 + (36 ÷ 6)] × 2 – 10 = ? 25.6% of 250 + √? = 119
