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Let number of questions with right answers = x ∴ No. of questions with wrong answers = 100 – x ∴ Marks obtained for right answers = x ∴ Marks deducted for wrong answers = (100 - x)/ 2 ∴ x - (100 - x) / 2 = 79 ⇒ 2x - 100 + x/ 2 = 79 ⇒ 3x - 100 = 158 ⇒ 3x = 258 ∴ x = 86 ∴ No. of questions with wrong answers (100 – 86) = 14
?% of 399.97 = 11.982 + 16.13 × 4.16 – 35.99
124% of 620.99 + 11.65% of 1279.23 = ?
{(1799.89 ÷ 8.18) ÷ 9.09 + 175.15} = 25.05% of ?
11.232 + 29.98% of 599.99 = ? × 6.99
19.92 × (52.065/260.07) × (45.09% of 359.87) =?
Find the approximate value of Question mark(?). No need to find the exact value.
(224.85 ÷ 15.09) × (35.96 ÷ 6.05) + 24.95% of 639.79 = ?
...? = 650.24 + 1124.97 – 14.992
44.98% of 399.98 = ? x 19.98 - (39.98% of 2499.98)