Problem Solving section 4 MCQ Detailed Explanation And More Example
MOST IMPORTANT verbal reasoning - 4 EXERCISES
The following question based on Problem Solving topic of verbal reasoning
(a) Rs 33
(b) Rs 8
(c) Rs 34
(d) None of these
The correct answers to the above question in:
Answer: (c)
If number of chocolates is NC then those of biscuits
$N_B = 2N_C$
and number of apples i.e $N_A > 3N_C$
also, total amount spent
= $2N_A + N_C + 1/4 (2N_B) = 2N_A + 2N_C$
(note that amount of money spent is even number)
option (b) 33 = 8 + 24 + 1
but 2$N_A$ ≠ 25
option (c) is not possible
So, option (a) 34 = 8+ 24 + 2
$↙{even}2N_A, [N_A > 3N_C also]↙{satisfied}$
So, option (c) is correct
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Read more question and answers set 4 Based Verbal Reasoning Questions and Answers
Directions:
Study the following information and answer questions that follow :
Bankatlal works x hours a day and rests y hours a day. This pattern continues for 1 week, with an exactly opposite pattern next week, and so on for four weeks. Every fifth week he has a different pattern. When he works longer than he rests, his wage per hour is twice what he earns per hour when he rests longer than he works. The following are his daily working hours for the weeks numbered 1 to 13
| 1st week | 5th week | 9th week | 13th week | |
| Rest | 2 | 3 | 4 | - |
| Work | 5 | 7 | 6 | 8 |
A week consist of six days and a month consists of 4 weeks
Question : 1
Referring to the data given in previous question, Bankatlal's average monthly salary at the end of the first four months will be
a) 2040
b) 1830
c) 1760
d) 1680
Answer »Answer: (b)
Salary for 5th and 7th week = 2 × 7 × 20 × 6 = Rs 1680
Salary for 6th and 8th week = 2 × 3 × 10 × 6 = Rs 360
Salary for 2nd month = 1680 + 360 = Rs 2040
Similarly salary for 3rd month
= 2(6 × 20 × 6) + 2 ( 4 × 10 × 6)
= 1440 + 480 = Rs 1920
Salary for 4th month = 2(8 × 20 × 6) + 2 (0) = Rs 1920
Salary at the end of 4 months
= 1440 + 2040 + 1920 + 1920
= Rs 7320
∴ Average monthly salary = ${7320}/4$ = Rs 1830
Question : 2
The new manager Khushaldas stipulated that Rs 5 be deducted for every hour of rest and Rs 25 be paid per hour starting 9th week, then what will be the change in Bankatlal's salary for the 3rd month? (Hourly deductions and salaries are constant for all weeks starting 9th week)
a) 480
b) 240
c) 540
d) 0
Answer »Answer: (a)
Under new scheme salary for 9th and 11th week
= 2 (25 × 6 – 5 × 4 ) × 6 = Rs 1560
Now salary for 10th and 12th week = 2( 25 × 4 – 5 × 6 ) × 6
= Rs 840
Total salary for 3rd month = 1560 + 840 = Rs 2400
Under previous scheme total salary for 3rd month
= Rs 1920
Difference = 2400 – 1920 = Rs 480
Question : 3
If Bankatlal is paid Rs. 20 per working hour in the 1st week, what is his salary for the 1st month?
a) 2040
b) 1320
c) 1440
d) 1680
Answer »Answer: (c)
Salary in the first week = Rs 20 per working hour
As the working pattern changes next week, so wage/hr for the 2nd and fourth week = ${20}/2$ = 10
Work and Rest hrs/day for the 2nd and 4th weeks respectively are 2 and 5 hrs.
A week consist of 6 days and a month of 4 week
Salary from 1st and 3rd week = 20 × 5 × 2 × 6 = Rs 1200
Salary for 2nd and 4th week = 2 × 10 × 6 × 2 = Rs 240
Salary for 1st month = 1200 + 240 = Rs 1440
Question : 4
Seven men, A, B, C, D, E, F and G are standing in a queue in that order. Each one is wearing a cap of different colour like violet, indigo, blue green, yellow, orange and red. D is able to see in front of him green and blue, but not violet. E can see violet and yellow, but not red. G can see caps of all colours other than orange. If E is wearing an indigo coloured cap, then the colour of the cap worn by F is
a) Violet
b) Red
c) Blue
d) Orange
Answer »Answer: (b)
The key point is in this question is "A person can see but caps of all persons standing in front of him can't see his own cap and caps of persons standing behind him.
From the given data he can summarise all the information in a table :
| Person | Cap |
| A/B/C | Green/blue/yellow |
| D | Violet |
| E | Indigo |
| F | Red |
| G | Orange |
Question : 5
Five boys took part in a race. Raj finished before Mohit but behind Gaurav. Ashish finished before Sanchit but behind Mohit. Who won the race ?
a) Gaurav
b) Mohit
c) Raj
d) Ashish
Answer »Answer: (a)
Gaurav – Raj – Mohit – Ashish – Sanchit.
Hence Gaurav won the race.
Question : 6
There are five hobby clubs in a college viz, photography yachting, chess, electronics and gardening. The gardening group meets every second day, the electronics group meets every third day, the chess group meets every fourth day, the yachting group meets every fifth day and the photography group meets every sixth day. How many times do all the five groups meet on the same day within 180 days?
a) 5
b) 10
c) 3
d) 18
Answer »Answer: (c)
Take the LCM. of 2, 3, 4, 5, 6 = 60
So every $60^{th}$ day all five hobby clubs meet. So in a period of 180 days they meet thrice i.e. on $60^{th}, 120^{th}$ and $180^{th}$ day.
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