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Many inventors invented light bulbs, but it was him who invented an incandescent bulb that could burn for a long time. He was also the first inventor to be awarded a patent for this invention. Identify him.


ASamuel Morse
BAlexander Graham Bell
CThomas Alva Edison
DJohn Logie Baird

What is the standard form of 7,000 + 800 + 20 + 5?

A7,285
B7,825
C7,852
D7,528

Kartik can throw a ball metres high. Ayan can throw the same ball metres high. How much farther can Kartik throw the ball than Ayan?

A
B
C
D

Refer to the diagram of the human digestive system to answer the following question. What would be the likely consequence of swapping S and T i.e., from the stomach, food will pass through T to S?


AThe digestive enzymes would be denatured.
BThe intestinal contents would be highly alkaline and would damage the wall of T.
CThe intestinal contents would be too dry and unable to pass through S properly.
DWater absorption would be highly reduced.

Which of the following is the most environment- friendly way of bathing?

AShowering for 20 minutes thrice a day
BUsing a bucket of water
CShowering for 10 minutes twice a day
DSitting under the running tap for 10 minutes

Nihal celebrates his birthday on the next day of third Friday of August 20XX. The date after his birthday will be ______.

(IMO 2015)



A20th August
B19th August
C26th August
D27th August

What is the prime factorization of 45?

A2³ × 5
B3² × 5
C5² × 3
D5² × 9

Mohit is thinking of two numbers. Their greatest common factor is 6. Their least common multiple is 36. One of the numbers is 12. What is the other number?

A18
B16
C6
D24

String ______ is the shortest and string ______ is the longest.



AQ, P
BQ, R
CP, R
DR, Q

Mr Jain works in an observatory. He studies Space and the objects like Planets, Stars and Galaxies found in it. What is his profession?

AAstronomer
BFlorist
CAstronaut
DPilot