Find the difference between total chocolate cookies produced by company B and total butter cookies p...........

Quantitative Aptitude(IBPS PO) Pie Chart

Direction (): Pie chart (i) shows distribution of total cookies (butter + chocolate) produced by four different companies and pie chart (ii) shows distribution of total chocolate cookies produced by these four companies. Read the data carefully and answer the questions.

Find the difference between total chocolate cookies produced by company B and total butter cookies produced by company D?

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Explanation:

For total cookies produced pie chart
2N% + (N + 5)% + N% + (N + 20)% = 100%
(5N + 25) % = 100%
5N = 75
N = 15
Let total cookies produced by all four companies = 100x
So, total cookies produced by A = 100x ×(15+5)/100 = 20x
Total cookies produced by B = 100x × 15/100 = 15x
Total cookies produced by C = 100x ×(15+20)/100 = 35x
Total cookies produced by D = 100x ×2×15/100 = 30x
Similarly, for total chocolate cookies produced pie chart
(M + 10) % + M% + 20% + 40% = 100%
(2M + 70) % = 100%
2M = 30 ⇒ M = 15

Let total chocolate cookies produced by all four companies = 100y
So, total chocolate cookies produced by A
= 100y ×15/100=15y
Total chocolate cookies produced by B = 100?? ×20/100=20y
Total chocolate cookies produced by C = 100y ×40/100=40y
And total chocolate cookies produced by D = 100y ×(15+10)/100 = 25y
Give,
20x – 15y = 110
Or, 4x – 3y = 22 ---------- (i)
And, 15x – 20y = 30
3x – 4y = 6 --------- (ii)
From (i) and (ii) we get –
x = 10, y = 6

Total chocolate cookies produced by B = 20 ×6=120
Total butter cookies produced by D = (30 ×10−25 ×6)=150
Required difference = 150 – 120 = 30