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Total number of artists = 10 + 8 = 18 Let S be the sample space. Then, n(S) = number of ways selecting 4 artists out of 18 = 18C4 = (18 × 17 × 16 × 15)/(3 × 2 × 1) = 3060 Let E= event of selecting 2 dancers and 2 singers n(E) = ¹°C_2×⁸C_2 = (10 × 9 )/(2 ×1) x (8 × 7)/(2 ×1) = 45× 28 = 1260 ∴ P (E) = n(E)/n(S) = 1260/3060 = 7/17
By interchanging the given two signs which of the following equation(s) will be correct?
+ and x;
I. 16 x 9 + 2 ÷ 3 – 5 = 17
...If BANK is coded as 32 and BRAKE is coded as 42, then how would CLEVER be coded?
In a code language, 'PALM' is coded as 16-1-12-13 and 'HEAD' is coded as 8-5-1-4. How will 'NECK' be coded in the same language?
What will come in place of the question mark (?) in the following equation, if ‘+’ and ‘–’ are interchanged and ‘×’ and ‘÷’ are inte...
Who is an immediate neighbour of Ziya?
How many classes are there in the given picture?
A paper is folded and cut as shown below. How will it appear when unfolded?
In a certain code language, "DICTATOR" is written as "DROATTCI" and "GLIMPSE" is written as "GESPMIL". How will "CONDEMN" be written in that language?
Which letter-cluster will replace the question mark (?) to complete the given series?
AXFN, GCJQ, MHNT, ?, YRVZ
