Question
In a Group of 8 boys and 6 girls, Six children are to be
selected. In how many different ways can they be selected such that at least one boy should be there?Solution
For At least 1 boy we have (1 boy and 5 girls), (2 boys and 4 girls), (3 boys and 3 girls), (4 boys and 2 girls), (5 boys and 1 girl), (6 boys) ∴ Required Number of ways = (8C1 × 6C5) + (8C2 × 6C4) + (8C3 × 6C3) + (8C4 × 6C2) + (8C5 × 6C1) + 8C6 = 48 + 420 + 1120 + 1050 + 336 + 28 = 3002 ways
_____ is known as the Camel crop.
The practice in which the plants are grown to extract water from area of shallow water table, through transpiration process is called as ___
The biggest or greatest amount of involvement in a foreign market comes through which of the following?
Which is not a short day plant?
The use of Stokes’ law for measurement of the size of soil particle depends on certain simplifying assumptions. These are:
A. Particles must be...
Which cost refers to the additional cost incurred by producing one additional unit of output?
At 50-75 % ASM range (Available soil moisture range)____ soils, form ball and ribbons out between thumb and fore fingers
Which disease is not associated with apple?
What are located between the compound eyes which may be variable in number, but never exceed three in number? Function appears to aid the insect in dete...
Feni is made from
Relevant for Exams:
