Lakshya Education MCQs

Question: Pebbles can buy eggs from two stores: a new Relance supermarket that sells eggs only in crates of 4, and a road side shoppe that sells single eggs without a crate. If Pebbles wants to ensure that the total number of eggs she buys is a multiple of 5, what is the minimum number of eggs she must buy from the road side shoppe?
D.none of these
Answer: Option D
: D

Pebbles can buy 0 eggs from the road side shoppe and 20 eggs from the supermarket

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Question 1. Aditi bought some bananas, mangoes, guavas, pears and sapotas. She bought atleast 5 of each. All the numbers bought were distinct. Given that she has bought the least number of bananas, the number of bananas bought can be exactly determined if the total number of items bought is at most?
  1.    38
  2.    39
  3.    40
  4.    41
Answer: Option C
: C

5 + 6 + 7 + 8 + 9 = 35 and 6 + 7 + 8 + 9 + 10 = 40 so if he buys 39 items, he has to buy 5 bananas.
Question 2. How many possible ways are there for sending petrol from any refinery to any district?___

: Number of refineries = 6 Number of depots = 7 Number of districts = 9 Therefore, number of possible ways to send petrol from any refinery to any district is 6 × 7 × 9 = 378.
Question 3. A league tournament was played between the teams Australia, Bangladesh, Canada and Zimbabwe in which each team played every other team exactly once. There were no ties or abandoned matches. All the results followed the rule that in a match between two teams, the team which had won a larger number of matches out of all their previous encounters won this match. Which team won the largest number of matches?
  1.    Australia
  2.    Bangladesh
  3.    Canada
  4.    Zimbabwe
Answer: Option A
: A

Question 4. In the health category, the number of articles published in December 2002 as compared to June 2003
  1.    was larger.
  2.    was smaller
  3.    was equal.
  4.    Cannot be determined
Answer: Option A
: A

Let the total number of articles published in December 2002 and june 2003 be 'x' and 'y' respectively Then we know that x>y => .19x>.18y
Question 5. All the required pairs cannot be determined if it is known that BLUE kept in a box together with
  1.    GREEN
  2.    YELLOW
  3.    PINK
  4.    PURPLE
Answer: Option B
: B

If blue is kept together with yellow, then two cases are possible.
1. (Blue, Yellow), (Green, Pink) and (Red, Purple).
2.(Blue, Yellow), (Green, Purple) and (Red, Pink).
Question 6. If no of units of Brand 3 increases by 20% and there is decrease of 16.66% in its price per unit then tax collected by brand 3 will be more or less as compared to brand 1 by how much percentage approximately?
  1.    22%
  2.    25%
  3.    28%
  4.    32%
Answer: Option D
: D

Tax collected = No. of units × Price per unit ×% of tax collected on value. Now as No of units increases by 15th and price per unit decreases by 16th , the tax collected remains the same. Hence required answer is = =913500061600009135000×100=32.56%

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