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Aakash National Talent Hunt Exam 2020

Sample Paper

(Class VII Studying Moving to Class VIII)

ANSWERS

1. (2)

2. (1)

3. (1)

4. (1)

5. (1, 4)

6. (1)

7. A(P), B(Q, R), C(S), D(P, Q, R, S)

8. (2)

9. (2)

10. (1)

11. (4)

12. (3, 4)

13. (4)

14. A(Q, S), B(P, R), C(Q, S), D(P, R)

15. (2)

16. (4)

17. (3)

18. (1)

19. (1, 4)

20. (1)

21. A(Q), B(P, S), C(P, R), D(R)

22. (1)

23. (2)

24. (3)

25. (2)

26. (1, 2, 3)

27. (1)

28. A(Q), B(R), C(R), D(P, S)

29. (3)

30. (4)

31. (1)

32. (3)

33. (2)

34. (1, 2)

35. (1 2)

1

(Class VII Studying Moving to Class VIII) - Sample Paper ANTHE-2020 (Foundation) (Hints & Solutions)

Regd. Office : Aakash Tower, 8, Pusa Road, New Delhi-110005

Ph.: 011-47623456

Aakash National Talent Hunt Exam 2020

Sample Paper

(Class VII Studying Moving to Class VIII)

HINTS & SOLUTIONS

PHYSICS

1. Answer (2)

Heart beats 72 times in 60 seconds

Heat beats in 20 seconds 77

20 24 times60

= =

2. Answer (1)

Average speed in first interval

4449 4409

90 km/h30

60

−= =

Average speed in second interval

4469 4449

80 km/h15

60

−= =

Ratio 90 9

80 8= =

3. Answer (1)

Air moves from a region of high pressure to a

region of low pressure.

4. Answer (1)

We will feel colder if T < 30°C

5. Answer (1, 4)

3

1.5 s4

T=

T = 2 s

Time taken to complete 20 oscillations

= 20 × 2 = 40 s

Time taken to complete 50 oscillations

= 50 × 2 = 100 s

6. Answer (1)

In summer, near the equator the land warms up

faster and most of the time temperature of land is

higher than that of the water in ocean. The air over

lands gets heated and rises. This cause winds to

flow from the ocean towards the land.

7. Answer A(P), B(Q, R), C(S), D(P, Q, R, S)

In Solids, generally, the heat is transferred by

conduction. In liquids and gases, the heat is

transferred by convection. No median is required

for transfer of heat by radiation.

CHEMISTRY

8. Answer (2)

Organic matter releases acids which neutralises

the basic nature of the soil.

9. Answer (2)

Ozone acts as a natural shield against ultraviolet

radiation as it absorbs this radiation and breaks

down to oxygen.

2

ANTHE-2020 (Foundation) (Hints & Solutions) (Class VII Studying Moving to Class VIII) - Sample Paper

10. Answer (1)

For rusting the presence of both oxygen (air) and

water is essential.

11. Answer (4)

Hydrochloric acid is not obtained from fruits

12. Answer (3, 4)

Turmeric is an indicator and it does not neutralise

soap solution. Also the nature of lime remains

basic when dissolved in water. So in both the

cases no neutral substances is formed.

13. Answer (4)

Silk fibres are not plant fibres. It is made of a

protein secreted by caterpillar of silk moth (silk

worm).

14. Answer A(Q, S), B(P, R), C(Q, S), D(P, R)

(A) Mooga and (C) Kosa are type of silk obtained

from cocoon.

(B) Marwari and (D) Patanwadi are wool yielding

animal and these breeds are found in Gujarat.

BIOLOGY

15. Answer (2)

Rhizobium can take atmospheric nitrogen and

convert it into usable form.

16. Answer (4)

Starfish feeds on animals covered by hard shells

of calcium carbonate.

17. Answer (3)

Cuscuta has parasitic mode of nutrition.

18. Answer (1)

Tongue is the fleshy muscular organ attached at

the back of floor of buccal cavity.

19. Answer (1, 4)

Large ears of elephant help it to hear even soft

sounds as well as to keep cool in the hot and

humid climate of the rainforest.

20. Answer (1)

Many tropical animals have sensitive hearing,

sharp eyesight, thick skin and colour which helps

them to camouflage by blending with the

surroundings and protect them from predators.

21. Answer A(Q), B(P, S), C(P, R), D(R)

• Water is produced only during aerobic

respiration.

• Lactic acid is produced during anaerobic

respiration in muscle cells.

• Alcohol is produced in yeast during anaerobic

respiration.

• Yeast is a single celled organism.

MATHEMATICS

22. Answer (1)

Let Rohan’s present age be x years

x + 35 = 8x

x = 5

23. Answer (2)

BDE = 180° – 107° = 73°

and y + 73° = 100°

24. Answer (3)

1

1

yx y y

x yy

y

++

=−

−

= 2

2

1

1

y

y

+

−

25. Answer (2)

1 2 3 4 5 6

3.56

x+ + + + +

= =

and 3 4

3.52

y+

= =

26. Answer (1, 2, 3)

12 34 54 2

30 85 135 5= = =

27. Answer (1)

BC2 = 202 – 162

BC = 12 cm

3

(Class VII Studying Moving to Class VIII) - Sample Paper ANTHE-2020 (Foundation) (Hints & Solutions)

28. Answer A(Q), B(R), C(R), D(P, S)

5 4

20%25 4

= ,

1 – 0.26 = 74%,

37 2

74%50 2

=

and 18

0.25 25%72

= =

MENTAL ABILITY

29. Answer (3)

Each box given a prime number.

a – 2, b – 3, c – 5, d – 7, e – 11, f – 13, g – 17, h = 19

and i – 23

30. Answer (4)

A

P

BR

OQ

C

Name of triangles are ABC, APC, ABQ, BOP,

COQ, BOR, COR, BPC, BQC, BOC

31. Answer (1)

The correct water image of PQRST is in option (1)

32. Answer (3)

D(4) → 3, M(13) → 12, U(21) → 20

33. Answer (2)

5 = 23 5 = 52 – 2

9 = 79 9 = 92 – 2

12 = ? 12 = 122 – 2 = 142

34. Answer (1, 2)

I – 2 × 2 + 1 = 5, 5 ×2 + 1 = 11, 11 × 2 + 1 = 23, 23

× 2 + 1 = 47, 47 × 2 + 1 = 95

II – 9 × 2 + 1 = 19, 19 × 2 + 1 = 39, 39 × 2 + 1 = 79,

79 × 2 + 1 = 159, 159 × 2 + 1 = 319

Only these two have same pattern.

35. Answer (1, 2)

The water image of mirror image of N and H are

same to its original letter.

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Edition: 2020-21