Menu
Popular Courses
Search
Question
Vikalp, Nilay and Nilabh and visited a shop to buy LED TV  and each one of them bought at least one unit of the TV. The shopkeeper gave a discount of 20% to Vikalp. Nilay, a good bargainer got two successive discounts of 20% and 60% . Nilabh, the hardest bargainer of all got three successive discounts of 20% , 40%  and  50%   respectively. After selling total of 'x' units to three of them, the shopkeeper calculated that he had given an overall discount of 56% . If
10x20 , then how many values of 'x' are possible? (Assume every one bought at least  one unit).
Options:
A .  5
B .  6
C .  7
D .  8
E .  9
Answer: Option B
:
B
Discount toNilay =10.8×0.4=68%
Discount to Nilabh =10.8×0.6×0.5=76%
Let a,b,c be the number of units sold to Vikalp, Nilay, and Nilabh respectively.
So, 0.2a+0.68b+0.76c=0.56(a+b+c)
So, 5c=3.(3a-b),
So,c is multiple of 3.
If,c=3 then (a,b)= (2,1),(3,4), (4,7)
If, c=6 then (a,b)= (4,2), (5,5), (6,8)
Hence 6 solutions.

Was this answer helpful ?
Next Question

Submit Comment/FeedBack

Your email address will not be published. Required fields are marked *

More Questions on This Topic :


Share this page with your friends!

Latest Videos

Chapter 1 - GLOBAL STEEL SCENARIO & INDI Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)
Direction Sense Test Part 1 Reasoning (Hindi)
Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE 2024
Cube & Cuboid Part 1 Reasoning (Hindi)
Data Interpretation (DI) Basic Concept Reasoning (Hindi)
Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)
Real Numbers Part 7 Class 10 Maths
Real Numbers Part 1 Class 10 Maths
Polynomials Part 1 Class 10 Maths

Latest Test Papers

Chapter 1.1 : INTRODUCTION Chapter 1 : Raw Material Handling Plant GPOE/GPA 2024
Chapter 1.1 : Personnel Functions- An ov Chapter 1 : Personnel Management GFM 2024
Chapter 3.1 : INTRODUCTION Chapter 3 : Sinter Plant GPOE/GPA 2024
Chapter 2.3 : COAL HANDLING PLANT - Set Chapter 2 : Coke Ovens and Coal Chemicals GPOE/GPA 2024
Chapter 2.1 : Overview Chapter 2 : Materials Management GFM 2024