Chapterwise Quantitative Aptitude Quiz 2017 – Percentage 1 | SBI PO Prelims 2017


Hello and welcome to exampundit. We will be providing chapterwise Quantitative Aptitude Word problems for the upcoming SBI PO Prelims 2017.

1. In a restaurant there are 3 chefs C1 , C2 and C3 which
cook 35% , 15% and 50% of the dishes respectively. C1, C2 and C3  cook 1%, 2% and 4% burnt dishes respectively.
What is the approximate percentage of good unburnt dishes?
(a) 25%
(b) 75%
(c) 53%
(d) 98%
(e) 97%
2. Everyday a pizza maker sells half of his stock, 10 % of
the stock gets spoiled overnight. If 2400 pizzas spoiled over 3 nights. Then,
how many pizzas did he start with on the first day?
(a) 38916
(b) 28916
(c) 56874
(d) Cannot be calculated
(e) None of the above
3. KFC gives 19 % less discount then McDonalds on purchase
of same amount of items on dine in facilities. Again, the delivery facilities
of McDonald gives 10% less discount then its dine in on same amount of
purchase. Similarly, the delivery facilities of KFC gives 11.11% less discount
than its dine in. How much percent less discount we get from KFC delivery
facilities than those of delivery facilities of McDonalds?
(a) 21.11%
(b) 30.11%
(c) 46%
(d) 20%
(e) None
4. In Bose family, the ratio of expenses to the savings is
5:3. But the expenses increased by 60% and income increased by 25%. Thus there
comes a deficit of ₹ 3500
in savings. The increased income of the family is?
(a) 35000
(b) 25000
(c) 55000
(d) 28000
(e) 185003
5. Alok, Bilal , Chandni and dolly purchased a complex for ₹ 56 lakhs. The payment by
Bilal, Chandni and dolly is 460% of that of Alok alone. The payment by Alok,
Chandni and dolly together is 366.66% of Bilal’s
payment. The payment by Chandni is 40% of payment of Alok, Bilal and dolly
together. The amount paid by dolly alone is?
(a) 10 lakh
(b) 15 lakh
(c) 12 lakh
(d) 16 lakh
(e) 18 lakh
6. Due to an increase of 40% in the price of brinjals, 4
brinjal less are available for rs. 8.80. The present rate of brinjals per dozen
is?
(a) 10.60
(b) 12.90
(c) 15
(d) 19
(e) 20
7. A large fish weighs 3o kg with 86 % weight being water.
It was dried in the sun and then only 80% of its weight is water. Its reduced
weight will be?
(a) 21
(b) 31
(c) 41
(d) 50
(e) None
8. Duggu gave 30 % of the money he had to his sister. He
also gave 20 % of the remaining balance to each of his 2 sons. Half of the
amount now left was spent on loans and remaining amount was 10,000 deposited in
the chit fund. How much money did Duggu have initially?
(a) 34567
(b) 47620
(c) 98554
(d) 43255
(e) None

Answers:

  1. Ans-e
  2. Ans-b
  3. Ans-d
  4. Ans-a
  5. Ans-e
  6. Ans-a
  7. Ans-a
  8. Ans-b

Solutions:

1.
(35×0.99)+(
15×0.98)+(50×0.96)/ 100  ×100=  79.9+13.5+46=97.35=97% approx
2.
day
Initial
sold
Remaining for overnight
spoiled
For next day stock
1
X
0.5x
0.5x
0.05x  (10%)
0.45x
2
0.45x
0.225x
0.225x
0.0225=0.023x
0.202x
3
0.202x
0.101x
0.101x
0.0101x=0.01x
Total
spoiled=0.05x+0.023x+0.01x=0.083x=2400
=>x=28915.66=28916
approx
3.                                                  Kfc       mcdonalds
Dinein                       100           81
Delivery                      90             72

90-72/90 x100= 20%

4. Income =
exp =+ saving
Deficit =
2x=rs 3500
Increased income=10x=10×3500=35000

5. A+B+C+D=56
B+C+D=4.6A
A+B+C+D=5.6A( ADDING A BOTH SIDES)
56 LAKH=5.6A
A=10 LAKHS
SIMILARLY, A+C+D=11/3 
B
A+B+C+D=14/3  B
B=12 LAKH 9A+B+C+D=56)
AGAIN,
4(A+B+D)=C
A+B+D=2.5C
A+B+C+D=3.5C
C=16 LAKH
THEREFORE, (A+B+C+D)-(A+B+C)=56-(10+12+16)=18 LAKH
6. Let original price per brinjal=rs x
Increased price= 140x/100
8.80/x=8.80/140x/100=>8.80/x-880/140x=4
=>1232-880=4×140x => 352=560x
X=0.63
Present price per dozen= 12× 140/100 × 0.63=10.60
7. Let
reduced weight be x
Tha pert of
weight other than water remains same.
100-86 % of
30 kg = 100-80% of x kg
14 % of 30
kg= 20 % of x kg
X= 14/20 ×30=21
8. Let initially be x
½    (100-(2×20)% of
(100-30)% of x= 10,000
½ ×  60/100  ×  
70/100 ×X= 10,000
X=47620

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