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Home ‣ Aptitude ‣ Quadratic Equation See What Others Are Saying!
- Question
- x 2 - 365 = 364; y - ? 324 = ? 81
Options- A. If x > y
- B. If x ? y
- C. If x < y
- D. If x ? y
- Correct Answer
- If x ? y
Explanationx2 - 365 = 364
? x2 = 364 + 365
? x = ?729 = ± 27
and y - ?324 = ?81 ? y - 18 = 9
? y = 27
So, y ? x or x ? y because y = 27 and x = 27 and - 27. - 1. One side of a parallelogram is 8.06 cm and its perpendicular distance from opposite side is 2.08 cm. What is the approximate area of the parallelogram?
Options- A. 12.56 cm2
- B. 14.56 cm2
- C. 16.76 cm2
- D. 22.56 cm2 Discuss
- 2. The simple interest at R% for R years will be Rs. R on a sum of?
Options- A. Rs. R
- B. Rs. 100R
- C. Rs. .(100/R)
- D. Rs. (100/R2) Discuss
- 3. Representation of 0.2341 in the form p / q, where p and q are integers, q ? 0, is?
Options- A. 781/3330
- B. 1171/4995
- C. 2341/9990
- D. 2339/9990 Discuss
- 4. 7, 8, 18, 57, 228, 1165, 6996
Options- A. 8
- B. 18
- C. 57
- D. 228
- E. 1165 Discuss
- 5. Find the average of 308, 142, 160, 245 and 25.
Options- A. 176
- B. 178
- C. 175
- D. 174 Discuss
- 6. The area of an equilateral triangle is ? 243 /4 sq cm. Find the length of its side.
Options- A. 3 cm
- B. 3?3 cm
- C. 9 cm
- D. ?3 cm Discuss
- 7. Consider the number between 300 and 400 which when divided by 12, 18 and 36 leaves 4 as remainder in each case. what is the sum of the number?
Options- A. 840
- B. 692
- C. 324
- D. 1024 Discuss
- 8. A, B and C started a business by investing ? 45000, ? 55000 and ? 60000, respectively, At the end of the year, they got a total profit of ? 11200. Find how much B gets more than A in the profit?
Options- A. ? 700
- B. ? 750
- C. ? 710
- D. ? 780 Discuss
- 9. The sum of three consecutive even numbers is 14 less than one-fourth of 176. What is middle number?
Options- A. 8
- B. 10
- C. 6
- D. Data inadequate Discuss
- 10. A man crosses a streets 600 m long in 5 minutes. His speed in km per hour is?
Options- A. 7.2
- B. 3.6
- C. 10
- D. 8.4 Discuss
More questions
Correct Answer: 16.76 cm2
Explanation:
Area of parallelogram = Base x Height
= 8.06 x 2.08 = 16.76 cm2
Correct Answer: Rs. .(100/R)
Explanation:
Sum = (100 x SI) / (R x T)
= (100 x R) / (R x R)
= Rs. 100/R
Correct Answer: 2339/9990
Explanation:
0.2341 = (2341 - 2) / 9990 = 2339/9990
Correct Answer: 228
Explanation:
Then, A, A x 1 + 1, B x 2 + 2, C x 3 + 3, D x 4 + 4, E x 5 + 5, F x 6 + 6 are the required numbers.
Clearly, 228 is wrong.
Correct Answer: 176
Explanation:
sum of observations
= 308 + 142 + 160 245 + 25 = 880
Average = Sum of all observations / Number of observations
=880 / 5
=176
Correct Answer: 3 cm
Explanation:
According to the question,
area = ?3a2/4
= ?243 /4
? a2 = ?81 x 3/?3
? a = ?9
= 3 cm
Correct Answer: 692
Explanation:
LCM of (12,18, 36) = 36
? A number greater than 300 on dividing by 36 leaves a remainder 4 = (36 x 9) + 4 = 328
Next numbe r = 328 + 36 = 364
? Sum of number = 328 + 364 = 692
Correct Answer: ? 700
Explanation:
Ratio of share of A, B and C = Ratio of their investments
= 45000 : 55000 : 60000 = 9 : 11 : 12
A's share = (9/32) x 11200 = ? 3150
B's share = (11/32) x 11200 = ? 3850
? B's share more than A = ( 3850 - 3150) = ? 700
Correct Answer: 10
Explanation:
Let the middle number = x , then first number = x - 2 and last number = x + 2
(x - 2) + x + (x + 2) = 176/4 - 14
x - 2 + x + x + 2 = 44 - 14
3x = 30
x = 10
So middle number = x = 10
Correct Answer: 7.2
Explanation:
Speed = 600 / (5 x 60) m/sec.
= 600 / (5 x 60) x 18/5 km/hr.
= 7.2 km/hr.
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