Discussion
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- Question
Derivative of sinx by first principle?
Options- A. -sinx
- B. -cosx
- C. cosx
- D. sinx
- Correct Answer
- cosx
- 1. 1422 ÷ 1260.25 = ?
Options- A. 586
- B. 578
- C. 568
- D. 566 Discuss
- 2. 78 of 448 + 67 of 3374 = ?
Options- A. 3084
- B. 3184
- C. 3584
- D. None of these Discuss
- 3. 2660 of 17 of 12 of 19.5 of 12 = ?
Options- A. 1
- B. 10
- C. 0.1
- D. 100 Discuss
- 4. Simplyfiy : 314÷114-12212-14+16
Options- A. 78
- B. 88
- C. 98
- D. 108 Discuss
- 5. Water boils at 212°F or 100°C and melts at 32°F or 0°C . If the temparature of the particular day is 35°C , it is equal to :
Options- A. 85°F
- B. 95°F
- C. 96°F
- D. 97°F Discuss
- 6. Simplify the following expression? 40% of ( 244 x ? ) = 48
Options- A. 24
- B. 22
- C. 20
- D. 18 Discuss
- 7. Simplify the fraction? 5 (2/7) - 3 (1/14) - 2 (1/14) - 1 (1/7) = ? + 3 (1/17)
Options- A. -4 (1/17)
- B. 5 (2/17)
- C. -2 (1/17)
- D. 3 (3/17) Discuss
- 8. In a party there are male and female members. If 15 female quit then the number of females will become double the number of males. If 45 males quit no. of female becomes five times the number of males. Find the number of females ?
Options- A. 175
- B. 145
- C. 165
- D. 135 Discuss
- 9. The average temperature of Monday to Wednesday was 37 C and of Tuesday to Thursday was 34 C. If the temperature on Thursday was 4/5 th of that of Monday, the temperature on Thursday was ?
Options- A. 35 c
- B. 36 c
- C. 34 c
- D. 32 c Discuss
- 10. Two parallel chords on the same side of the centre of a circle are 5 cm apart. If the chords are 20 and 28 cm long, what is the radius of the circle?
Options- A. 14.69 cm
- B. 15.69 cm
- C. 18.65 cm
- D. 16.42 cm Discuss
Simplification problems
Search Results
Correct Answer: 568
Explanation:
=>
Correct Answer: None of these
Explanation:
Correct Answer: 10
Explanation:
Correct Answer: 78
Explanation:
Given exp = =
= =
= =78
Correct Answer: 95°F
Explanation:
Let F and C denotes the temparature in Fahrenheit anid Celcsius respectively.
Then, (F - 32) /(212 - 32) = (C - 0)/(100 - 0), if c = 35, then F = 95.
Correct Answer: 20
Explanation:
We know that
Correct Answer: -4 (1/17)
Explanation:
Given fraction is 5 (2/7) - 3 (1/14) - 2 (1/14) - 1 (1/7) = ? + 3 (1/17)
It can be written as
(5 - 3 - 2 - 1) + (2/7 - 1/14 - 1/14 - 1/7) = ? + 3 (1/17)
-1 + 0 - 3 (1/17) = ?
=> ? = -4 (1/17)
Correct Answer: 175
Explanation:
Let the number of males be 'M'
Let the number of females be 'F'
From the given conditions,
(F-15)=2M.....(i)
F=5(M-45).....(ii)
By solving the equations (1) & (2) we get M = 80
Then substitute M = 80 in (1)
F = 2M + 15
F = 2 x 80 + 15
=> F = 175
Therefore, number of males = 80 and females = 175 in the party.
Correct Answer: 36 c
Explanation:
Monday + Tuesday + Wednesday = 37 x 3 -----------(1)
Tuesday + Wednesday + Thursday = 34 x 3---------(2)
Thursday = 4/5 of Monday ------------------(3)
subtract eqn (1) from (2) we get,
Thursday - Monday = -9
=> Monday - Thursday = 9.......(4)
From (3) & (4), we get
So,Thursday = 36 C
Correct Answer: 15.69 cm
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