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R = 2/3 (P + Q + R) -------(i) P = 1/9 (P + Q + R) -------(ii) Q = 10 years ------(iii) By adding eq. (i) , (ii) and (iii), we get P + Q + R = 2/3 (P + Q + R) + 1/9 (P + Q + R) + 10 Let P + Q + R = x x = 2/3 x + 1/9 x + 10 x - 2/3 x - 1/9 x = 10 x = 45 years Average age of P, Q and R = 45/3 = 15 years.
Select the option that represents the letters that, when placed from left to right in the following blanks, will complete the letter-series.
Statements:
Only Song are Lyrics.
Some Song are Music.
All Music are Composer.
Conclusion:
Statement: Should India follow a one child policy like China in order to control the population explosion?
Select the option in which the numbers are related in the same way as the numbers in the following set:
(13, 20, 14)
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