Question
In a certain code language, "HINT" is coded as '8107'
and "NIFT" is coded as '0197'. What is the code for 'F' in the given code language?Solution
Let’s line up both words with their codes: Now match each letter to its digit based on both codes:
- H → 8 (from HINT)
 - I → 1 (common in both)
 - N → 0 (common in both)
 - T → 7 (common in both)
 - F → 9 (only appears in NIFT)
 
31% of 3300 +659 = ?
? = 200.24 + 1077.97 – 14.992
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.) 
 49.99% of 639.99 + 159.98% of 49.99 = ?2
What approximate value should come in the place of (?) in the following questions?
...
(8160.42 ÷ 33.73) + 309.79 + ? = 30.2 * 81.84(0.89 3 + 1.64 3 +2.76 3 ) ÷ 5.89 = ?
?% of 549.83 – 18.05 × 31.96 = 44.94% of 479.84 – 13.98 × 33.13
?% of (150.31 ÷ 14.97 × 50.011) = 319.98
{44.78% of (11.67 × 54.78)} ÷ 2.65 = ? + 19.25
811.85 ÷ 28.05 + 462.16 – 23.06 × 17.95 = ?