Find the quadratic equations whose roots are the reciprocals of the roots of 2x² + 5x + 3 ?

1) 3x² + 5x + 2 = 0
2) 5x² + 3x + 2 = 0
3) 3x² − 5x − 2 = 0
4) None

In this question, ∆ means ‘is greater than’, % means ‘is lesser than’, ⃞ means ‘is equal to’, = means ‘is not equal to’, + means ‘is a little more than’, × means ‘is a little less than’. Choose the correct alternative.

 If a ∆ b and b + c, then 

1) a % c
2) c + a
3) c % a
4) Can’t say

If P denotes ‘+’, Q denotes ‘–‘, R denotes ‘×’ and S denotes ‘÷’, then which of the following statement is correct ?

1) 16 R 12 P 49 S 7 Q 9 = 200
2) 32 S 8 R 9 = 160 Q 12 R 12
3) 8 R 8 P 8 S 8 Q 8 = 57
4) 36 R 4 S 8 Q 7 P 4 = 10

‘+’ means ‘×’, ‘–’ means ‘÷’, ‘÷’ means ‘+’ and ‘×’ means ‘–’; then what will be the value of the following expression?

540 – 36 + 12 ÷ 75 × 55

1) 255
2) 512
3) 200
4) 235

If ‘–’ means addition, ‘×’ means subtraction, ‘÷’ means multiplication and ‘+’ means division; then what will be the value of the following expression?

20 × 12 + 4 – 16 ÷ 5 = ?

1) 17
2) 80
3) 63
4) 97