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P (A truth) = Probability that A speaks the truth =4/7 P (A lie) = Probability that A lies = 1 - P (A truth) =1-4/7 =3/7 P (B Truth) = Probability that B speaks the truth = 8/9 P (B lie) = Probability that B lies = 1- P (B truth) = 1-8/9 =1/9. 
(42% of 1500 + 170) ÷ 4 = ?2 - 52
? = √2704 ÷ (25% of 104) + 73
(500 × 6 ÷ 10) - (√256 + 8) = ?
?% of 320 = 40% of 40 × 5
2/5){(3/5) × 750 + 40% of 375} = ? × 16
34 × 5 × 2 ÷ 6 + 7 × 5 + 13 = (?)× 6 – 754
(0.064 × 3.2 × 2.5) ÷ (0.0016 × 4 × 1.25) = ?2 – 57
What will come in the place of question mark (?) in the given expression?
(30 × 5 + 20) × 2 = ?
√1444 + √729 – √2116 = ?
