Hello students! Welcome to **DILR Concept 4**

**Concept name:****– **Pie Chart

**Concept explanation****: **One or more pie charts are given. One needs to understand the data, connection between pie charts and solve questions accordingly

**Sample set: Read the information given below and answer the questions that follows:**

Pie chart I and Pie chart II show the break up – according to different expenditure heads and savings – of the incomes of Mr. And Mrs. Anand respectively. Pie chart III shows the break up – according to the type of savings – of the total savings of the couple (i.e., the savings of Mr. and Mrs. Anand together).

- If Mr. Anand’s savings are twice the total savings of the couple invested in fixed deposits, what is the ratio of the income of Mr. Anand to that of Mrs Anand?

(a)7 : 3 (b) 3 : 7 (c) 5 : 9 (d) 9 : 5

- If the ratio of the income of Mr. Anand to that of Mrs. Anand is 3 : 1, the total savings of the couple invested in PPF as a percentage of Mr. Anand’s savings are

(a)50% (b) 65% (c) 72% (d) 78%

**Solution**

- Let Mr Anand’s income be x and Mrs Anand’s income be y.

According to given condition-: 0.05x = 2*(0.15*(0.05x+0.21y)

=>0.035x =0.063y

=>(x/y) =9/5. So (d) is correct answer

2. Given ratio of incomes = 3:1

Ratio of Savings =5:7 . Let the total saving be Rs 12 investment in PPF =30% of total savings => 30% of 12= 3.6

Required Percentage=(3.6*100)/5 = 72%

**Level of difficulty: Easy**

**Hope you understood solving questions on pie charts**

Happy learning!

Rahul Sir

CAT Coach

Quora profile: https://www.quora.com/profile/Rahul-Anand-51

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Hello Sir/Ma’am! Please confirm the answer for question no. 1 if it’s 9/7 as I am getting 9/5. 🙂

Sir, can you please elaborate the solution for ques. No. 2 in this set.