NATIONAL MATHEMATICS DAY 2023 QUIZ

The next number in the pattern – 62, – 37, – 12 _________ is

• (a) 25

• (b) 13

• (c) 0

• (d) –13

Water level in a well was 20m below ground level. During rainy season, rain water collected in different water tanks was drained into the well and the water level rises 5 m above the previous level. The wall of the well is 1m 20 cm high and a pulley is fixed at a height of 80 cm. Raghu wants to draw water from the well. The minimum length of the rope that he can use is

• (a) 17 m

• (b) 18 m

• (c) 96 m

• (d) 97 m

On the following number line, (–4) × 3 is represented by the point _________.

• A

• B

• C

• D

Some integers are marked on a board. What is the range of these integers?

• (a) 31

• (b) 37

• (c) 20

• (d) 3

PQ is a mirror, AB is the incident ray and BC is the reflected ray. If ∠ ABC = 46^o, then ∠ ABP is equal to

• (a) 44^o

• (b) 67^o

• (c) 13^o

• (d) 62^o

The value of ∠A + ∠B + ∠C + ∠D + ∠E + ∠F is

• (a) 190^o

• (b) 540^o

• (c) 360^o

• (d) 180^o

Triangle DEF is a right triangle with ∠E = 90°. What type of angles are ∠D and ∠F?

• (a) They are equal angles

• (b) They form a pair of adjacent angles

• (c) They are complementary angles

• (d) They are supplementary angles

The per cent that represents the shaded region in the figure is

• (a) 36%

• (b) 64%

• (c) 27%

• (d) 48%

Which of the following shows the maximum rise in temperature?

• (a) 23° to 32°

• (b) – 10° to + 1°

• (c) – 18° to – 11°

• (d) – 5° to 5°

The odd one of the following

• (a) (–9) × 5 × 6 × (–3)

• (b) 9 × (–5) × 6 × (–3)

• (c) (–9) × (–5) × (–6) × 3

• (d) 9 × (–5) × (–6) × 3