Ans 2:
Class : Class 9
First add the numbers in opposite and square it.
Do the same for all the three pairs,
Finally add the three results.
You will get the number at the centre
Example: 1st one
1+6= 7
7^2 = 49
9 + 4 = 13
13 ^ 2 = 169
3+ 5 = 8
8^ 2 = 64
49+169+64 = 282
All the best...............
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Ans 1:
Class : Class 7
OPTION:-A) 20 because its simple decrease 2cm from 5cm ans is 3cm therefore, the insect crawls 3cm per second then 60 divided by 3 = 20,therefore ans =20 seconds
Ans 2:
Class : Class 10
Answer : B
Solution
Insect moved (5 - 2) cm per 2 seconds = 3 cm per 2 seconds
It will move 60 cm in (2/3 x 60) = 40 seconds
Solution
Insect moved (5 - 2) cm per 2 seconds = 3 cm per 2 seconds
It will move 60 cm in (2/3 x 60) = 40 seconds
Ans 3:
Class : Class 7
OPTION:-A) 20 because its simple decrease 2cm from 5cm ans is 3cm therefore, the insect crawls 3cm per second then 60 divided by 3 = 20,therefore ans =20 seconds
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Ans 1:
Class : Class 4
left side weight is 12 + 6(small ball) = 6 + 6 + 6 ( which means 12 + 6 + 6 + 6 + 6 = 36)
Ans 2:
Class : Class 10
Answer: C (36 kg)
The option C should be 36 kg and not 30 kg. Corrected the mistake.
Solution:
Let the weight of the small ball be x.
3x = 12 + x
2x = 12
x = 6
Weight of 5 balls = 12 + 6+ 6+ 6 +6 = 36kg
The option C should be 36 kg and not 30 kg. Corrected the mistake.
Solution:
Let the weight of the small ball be x.
3x = 12 + x
2x = 12
x = 6
Weight of 5 balls = 12 + 6+ 6+ 6 +6 = 36kg
Ans 4:
Class : Class 10
Answer: C (36 kg)
The option C should be 36 kg and not 30 kg. Corrected the mistake.
Solution:
Let the weight of the small ball be x.
3x = 12 + x
2x = 12
x = 6
Weight of 5 balls = 12 + 6+ 6+ 6 +6 = 36kg
The option C should be 36 kg and not 30 kg. Corrected the mistake.
Solution:
Let the weight of the small ball be x.
3x = 12 + x
2x = 12
x = 6
Weight of 5 balls = 12 + 6+ 6+ 6 +6 = 36kg
Ans 5:
Class : Class 3
I think they are asking for the mass of all 5 balls together. The mass of small ball is 6 Kg. Hence the total mass = 12 + 6 + 6 + 6 + 6 = 36.