What is the L.C. M of  $$ {2\over 5},{3\over 10},{4\over 15}$$.

Directions: Read the pie chart carefully and answer the following questions.

Note: No new employees joined the given banks of left the given banks from January 2015 to December 2015.

In January 2015, the number of male Scale I Officers in Bank B was three times the number of female Scale I Officers in the same bank. If in Bank D, the number of female Scale I Officers was the same as that in bank B; what was the number of male Scale I Officers in Bank D?

Simplify the following expression.
12 + 2.5 + (1.5 of 4) - 2.6

Direction: What approximate value will come in place of the question mark (?) in the following question? (You are not expected to calculate the exact value)

1728 ÷ ? + 149.98 × 25.15 = 3156 - 269.75

The 4th term of an arithmetic progression is 15, 15th term is -29, find the 10th term?

In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer.

I. x² + 19x + 90 = 0

II. y²+ 13y + 36 = 0

The product of 2 numbers is 1575 and their quotient is 9/7. Then the sum of the numbers is –

Directions: In each of these questions, two equations (i) and (ii) are given, you have to solve both the equations and give answer accordingly.

(i) 6x² – 11x + 4 = 0
 (ii) 3y² – 5y + 2 = 0