Question
The ratio of the number of boys and girls in a school is
23:17. If 45% of the boys and 50% of the girls got passed out of 1600 students, the approximate percentage of the students who got failed is: type-sscSolution
Total no. of students = 1600 Boys = 1600 x (23/40) = 920 and Girls = 1600 x (17/40) = 680 45% of boys who got passed = 920 x (45/100) = 414 50% of girls who got passed = 680 x (50/100) = 340 Therefore no. of students who got failed = 1600 - (414+ 340) = 846 Required % = [(846/1600)] x 100 = 52.87% approx.
2(3/4) of 2880 + 54% of 7520 - ? = 302
Find the value of the following expression:
372 ÷ 56 × 7 – 5 + 2
- What will come in place of (?), in the given expression.
(5³ + 3²) × 2 = ? (1225/25) - (192/96) + (50/5) = ?

What will come in the place of question mark (?) in the given expression?
(555 + 385 - 535) ÷ 15 X ? = 36 X 30
- What will come in place of (?), in the given expression.
75% of 640 – 20% of 150 = ? `(21 xx 51 + 54)/(9 xx 14 - 30 )` =?
95% of 830 - ? % of 2770 = 650