Question
In a village, number of male, female and children are in
the ratio of 3:5:7. If 90% of the males are literate, 80% of females are literate and 40% of children are illiterate, find the % of number of illiterate persons in the village.Solution
Let us assume that no. of Male, Female and Children be 300, 500 and 700 respectively. Total no. of persons = 1500 No. of literate males = 90% of 300 = 270 No. of illiterate males = 300 -270 = 30 No. of literate females = 80% of 500 = 400 No. of illiterate females = 500 - 400 = 100 No. of illiterate children = 40% of 700 = 280 No. of literate children = 700 -280 = 420 Total no. of illiterate persons = 30 + 100 + 280= 410 So % of illiterate = 410/1500X100 = 27.33%
- 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.)
? = 41.92% of 49.96% of (45.07 1.97 – 4.98 2.03 )
(15.15 ×  31.98) + 30.15% of 719.99 = ? + 124.34
15.2 x 1.5 + 258.88+ ? = 398.12 + 15.9
784.69 + 86.96 ÷ 29.01 = 40.01 + ? + 367.88
(29.892 × √290) + 32.98 × 6.91 = ?
(15.87% of 79.98 + 19.69% of 64.22) × 4.83 = ?
 (3/5) of 3025 + (18² + 12²) = ? + 22.22% of 1125
24.75% of 20.125% of 30.05% of 2196.06 = ?Â
(799.81/64) ÷ (10/799.92) × (129.84/130) = ?
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