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kalyani

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· 1 Months ago

Can someone help me in understanding this explanation? (Question: 110164.3 )

Can someone help me in understanding this explanation?

Question:

DIRECTIONS: Read the following passage and solve the questions based on it.


Manu, an intelligent baby girl, plucks apples from her father’s orchard on ten consecutive days. When asked by her mother as to how many apples has she plucked from the orchard daily, she gives the following sheet to her mother:




In the above question, how many of the statements can be verified for being right or wrong (using table I only)?
Options:
A) 0
B) 1
C) 2
D) 3
E) None of these
Solution:
Only statement I and statement III can be verified


No of apples plucked on

Day 1     (1+2+3) + (4+5+6) – (2+3+4+5+6)= 130+145-225 = 50

Day 2     (2+3+4)+ (5+6+7)- (3+4+5+6+7) = 150 + 140 -265 = 25

Day 3     (1+2+3) + (3+4+5) – (1+2+3+4+5+6) = 130+ 165 -240 = 55

Day 4     (2+3+4) + (4+5+6) – (2+3+4+5+6) = 150+ 145 -225 =70

Day 5     (3+4+5) + (5+6+7) – (3+4+5+6+7) = 165 + 140 -265 = 40

Day 6     (4+5+6) + (6+7+8) – (4+5+6+7+8) = 145+160-270 =35

Day 7     (5+6+7) + (7+8+9) – (5+6+7+8+9) = 140+175-250=65

Day 8     (6+7+8) +(8+9+10) – (6+7+8+9+10) = 160+155-255=60

Day 9     (4+5+6) + (7+8+9) – (4+5+6+7+8) = 145 + 175 -270 = 50

Day 10   (5+6+7) + (8+9+10) – (5+6+7+8+9) = 140 + 155 – 250 = 45

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