Question
In how many ways will a team of 5 people be selected out
of 12 people such that a specific person will always be selected, and a specific person will always remain?Solution
total people =12 1 always must choose which means now we must choose from the remaining 11. 4 players. But 1 player is never chosen it means 4 to choose from (11-1=10) =10C4 =10! / (4! ×6!) = (10×9×8×7)/ (4×3×2×1) =210.
If ( m+n ) : √ (mn) = 4, m>n , Then find the value of m : n ?
A boat covers 540 km upstream and downstream in 't' time. If the speed of the stream is 8 km/h and the speed of the boat is 10 km/h then find the value ...
Find the common factor of (x2 - 4x - 12) and (x2 - 14x - 32).
11, 18, 27, 38, 54, 66
- If (360 – 335 + 205) ÷ 10 + √1600 = x, then {(x/2) + 8} = ?
ABCD is a cyclic quadrilateral in which AB =16.5 cm. BC = x cm. CD= 11 cm. AD 19.8 cm, and BD is bisected by AC at O. What is the value of x?
If x2 - 7x + 1 = 0, then determine the value of:
If (x² + 1)/x = 3, what is the value of (x¹² + 1)/x ⁶ ?
- If p² + q² + r² = 240 and pq – qr – rp = 64, then determine the value of (p + q – r) ².
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