: Become master of ratio and proportion #IndiaNEWS #Education Today Hyderabad: This article is in continuation to the last article focusing on the ratio and proportion topic. Here are some practice

Become master of ratio and proportion #IndiaNEWS #Education Today
Hyderabad: This article is in continuation to the last article focusing on the ratio and proportion topic. Here are some practice questions along with solutions that will help you in your preparation for the State government recruitment jobs.
In the income statement of Asha and Ravenna, the ratio of their income in the year 2017 was 5 : 4. The ratio of Asha’s income in the year 2018 to that in 2017 is 3 : 5 and the ratio of Ravenna’s income in the year 2018 to that in 2017 is 3 : 2. If Rs. 10242 is the sum of the income of Asha and Ravenna in the year 2018, then find the income of Ravenna in the year 2017?
a) Rs. 1024 b) Rs. 1235 c) Rs. 3574 d) Rs. 4552
Ans: d
Solution: Let the income of Asha in 2018 and 2017 be 3x and 5x respectively
Let the income of Ravenna in 2018 and 2017 be 3y and 2y respectively. Since, the ratio of their income in the year 2017 was 5 : 4
5x:2y =5:4
2x=y
The sum of their incomes in 2018 is Rs. 10242 3x 3y = 10, 242
9x=10,242
x=1,138andy =2276
Ravenna’s income for the year 2017=2y=Rs. 4552
A father distributed some chocolates among his four children and kept some with him. The eldest three children got chocolates in the ratio 3 : 11 : 7. The total number of chocolates with father and youngest child is three times the total chocolates with the three eldest children. The ratio of chocolates with father and that with all the children is 3 : 4. Find the total number of chocolates if the youngest child has 81 chocolates with him?
a) 252 b) 274 c) 286 d) 295
Ans: a
Solution: Let the children be P, Q, R and S and Father be F
Chocolates with P :Q:R= 3:7:11
Let the number of chocolates be 3k, 7k and 11k
Total chocolates with three eldest children = 21k
Chocolate with F and S=3× 21k= 63k
Total chocolates=(21k 63k)=84k
Chocolate with F:(P Q R S)=3:4
Total 7 units of chocolate =84k
1 unit= 12k
Chocolate with F = 3 × 12k = 36k
Chocolate with S= (63h?$???OL??????Hx????H??[?[X???????]?N
?N
0???L?L??[??????????H?H???X?[??H[???]??[???][???K?H?][?????[????[??X?[?H???X[?][??X?[?????
K??Y[?????H?X?[???HXYH??[?[?H??[?[?????????[?????]XX????]?[??]X[?[X????Y[??Y?HX^[][H?[X????Y[?????X?H[?H????M??]?HY???[??H?]?Y[?H?[X??????[??X?[?H[???JH??H?N?H?
H?
??[?????][??]H??[???OLM??[?]?N??X?[?H?][????????L?x??????LL??[????M??X?[???][????????H??
H8??????H??[????H
Z?H?8?$????HMZ?[????HZ?X^[][H?[X????Y[??[?H???H?MZ?Z?OH???????NM?????H??Y???[??H?]?Y[??????X?[?H[??HL??8?$???HZ?8???H0???H????H??[?YY8?)??H?[??]??X???U??X?X?][??[?Z??Y?????L?L??