Which is greater?
(1) 17:21 or 9:14
(20) 13:30 or 17 : 45
Divide 48 in the ratio 7:9.
Divide 441 in the ratio 3:7:11.
In a class, the ratio of the number of boys and girls is 9 : 5. Find the number of boys if the
total number of students in the class is 42.
village, males and females are in the ratio 12:11. What part of total population are
A mixture of sand and salt is in the ratio 3:2. A bag contains 50 kg of mixture. Find the
quantities of sand and salt in the mixture.
Divide * 18507 between two sisters Mary and Ruby in the ratio 11 : 20 as the share of
profit in a business.
& The weights of tin and zinc in an alloy are in the ratio 2:5. Find the weight of the alloy
if the weight of the zinc is 22.5 g.
9. The population of a village is 7540. The ratio of illiterate and literate people is 8: 5. Find
the number of both illiterates and literates.
10. The sides of a triangle are in the ratio 5:3:7. If the perimeter of the triangle is 90 cm,
find the measures of its sides.
11. Mr Sharma divides 3 23550 among his children Neha, Vishu and Prashant in such a way
that Neha gets double of what Vishu gets and Vishu gets triple of Prashant gets. How much
E3 and 2
(ii) 11:18 or 7:12
(v) 3:7 or 5:9
(ii) 5:22 or 17:40
5 Ina
7
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each child gets?
Answers
Answer:
1. 17:21 greater one
20. 13:30 greater one
divide 48 by 7:9
7+9=16
48÷16= 3
7×3=21, 9×3=27
therfore 21:27 required
Divide 441 in the ratio 3:7:11.
3+7+11=21
441÷21= 21
3×21 =63, 7×21 = 147, 11×21 = 231
thus 63:147:231
number of boys and girls is 9 : 5.
total is 42
9+5=14
42÷ 14 = 3
no of boys =9×3= 27
no of girls = 5×3= 15
A mixture of sand and salt is in the ratio 3:2. A bag contains 50 kg of mixture. Find thequantities of sand
and salt in the mixture.
3+2=5
50÷5=10
quantities of sand =3×10=30
quantities of salt = 2×10= 20
Divide * 18507 between two sisters Mary and Ruby in the ratio 11 : 20 as the share of
profit in a business.
11+20= 31
18507 ÷ 31 = 1423.6
11×1423.6= 15659.6
20×1423.6 = 28472
profit 28472 - 15659.6 = 1812.4
9. The population of a village is 7540. The ratio of illiterate and literate people is 8: 5. Find
the number of both illiterates and literates
8+5=13
7540÷13=580
illiterates 8×580= 4880
literates 5×580 = 2900
10. The sides of a triangle are in the ratio 5:3:7. If the perimeter of the triangle is 90 cm,
find the measures of its sides.
5+3+7=15
90÷15=6
sides
5×6=30
3×6=18
7×6=42
Answer:
yes you are correct and not wrong