Question
From 6 officers and 8 Jawans, in how many ways can 5 be
chosen to include exactly 3 officers?Solution
Required Number of ways = 6C3 × 8C2 = 6!/(3! ×3!) × 8!/(2! ×6!) = 20 × 28 = 560
More Permutation and combination Questions
Match set A (instrument) with set B (measured parameter)
Truly migratory fish, the migrations of which occur wholly within freshwater is classified as
Ooze test is used for the detection of ___
Critical period of crop weed competition in wheat plant is ______
World Forestry Day is celebrated on
Which mineral is most abundant in the Earth’s crust?
What distinguishes secondary wholesale markets?
Which milk product is coagulated by enzymes?
Vector of rice tungro disease?
Surge Irrigation is the modification of which type of irrigation?
