The average of `X_1,\ X_2` and `X_3` is 14. Twice the sum of `X_2` and `X_3` is 30. What is the value of `X_1` ? (a) 12 (b) 16 (c) 20 (d) 27

The average of x_1, x_2, x_3 and x_4 is 16. Half the sum of x_2, x_3, x_4 is 23. What is the value of x_1 ? (a) 17 (b) 18 (c) 19 (d) 20

If 8^(x+1)=64, what is the value of 3^(2x+1)?1 (b) 3 (c) 9 (d) 27

The average of x_(1),x_(2),x_(3),x_(4) is 16 . Half the sum of x_(2),x_(3),x_(4) is 23 .What is the value of x_(1) ?

If 4:3=x^(2):12, then the value of x(x>0)16( b) 4(c)9(d)3

If 2x+3 = 9 then find the value of 3x+2 A. 12 B. 16 C. 13 D. 11

There are 4 consecutive odd numbers (x_1, x_2, x_3 a n d x_4) and three consecutive even numbers (y_1, y_2 a n d y_3) . The average of the odd numbers is 6 less than the average of the even numbers. If the sum of the three even numbers is 16 less than the sum of the four odd numbers, what is the average of x_1, x_2, x_3 and x_4 ? (a) 30 (b) 38 (c) 32 (d) 34

If 3x+(1)/(2x)=5 then what is the value of 27x^(3)+(1)/(8x^(3)) ?

If 3^x + 27{3^(-x)} = 12 , then what is the value of x ?