MCQ
The average maximum temperature for $7$ days from the $12th$ September to $18th$ September is $35^\circ C$ and that for $7$ days from $13th$ to $19th$ September is $34^\circ C.$ From this we can conclude that:
  • A
    Maximum temperature on $19th$ is $1^\circ C$ less than that for $12th$ September
  • B
    Maximum temperature on $12th$ is $1^\circ C$ less than that for $19th$ September
  • Maximum temperature on $19th$ is $7^\circ C$ less than that for $12th$ September
  • D
    None of the above

Answer

Correct option: C.
Maximum temperature on $19th$ is $7^\circ C$ less than that for $12th$ September

The average maximum temp from $12th$ sept to $18th$ sept is $35$ and The average maximum temp from $13th$ sept to $19th$ sept is $34$ then total temp from $12th$ sept to $18th$ sept $= 35 \times 7 = 245$ and total temp from $13th$ sept to $19th$ sept $= 34 \times 7 = 238$ then diff $= 245 - 238 = 7$ so Maximum temperature on $12th$ is $7^\circ $ less than that for $19th$ September. $77$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free