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Monica

· started a discussion

· 1 Months ago

regarding solution (Question: 188602.0 )

its 4+3=7 days
then why 255*6 and not 255*7

Question:
In 6 days of a week, 250 boys attended for the first four days and 260 boys for the last three days. The average attendance in this week is 255. The number of students present on Thursday was  –
Options:
A) 260
B) 250
C) 240
D) 280 
Solution:
Ans: (b) ATQ,

Students on Thursday

= 250 × 4 + 260 × 3 – 255 × 6  

= 1000 + 780 – 1530 = 250

Knowledge Expert

· commented

· 1 Months ago

Dear Student,

In given question clearly mention number of days is 6 in a week. it means boys attend class only for 6 days,

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