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- Question
- The sum of the four consecutive even numbers is 284. What would be the smallest number.
Options- A. 72
- B. 74
- C. 68
- D. 66
- Correct Answer
- 68
ExplanationLet four consecutive even numbers are P, P + 2, P + 4 and P + 6
According to the question,
P + P + 2 + P + 4 + P + 6 = 284
? 4P + 12 = 284
? 4P = 284 - 12 = 272
? P = 272/4 = 68 - 1. The product of two consecutive odd number is 6723. What is the greater number?
Options- A. 89
- B. 85
- C. 91
- D. 83 Discuss
- 2. In a division sum, the divisor is ten times the quotient and five times the remainder. If the remainder is 46, then find the dividend?
Options- A. 5388
- B. 5343
- C. 5336
- D. 5391 Discuss
- 3. When 1/7 of a number is subtracted from the number itself, it gives the same value as the sum of all the angels of a triangle. What is the number?
Options- A. 224
- B. 210
- C. 140
- D. 350 Discuss
- 4. Find the maximum number of trees which can be planted 20 m apart on the two sides of a straight road 1760 m long.
Options- A. 174
- B. 176
- C. 180
- D. 178 Discuss
- 5. In a two digit positive number the unit digit is equal to the square of ten's place digit. The difference between the original number and the number formed by interchanging the digit is 54. What of 40% of the original number?
Options- A. 64
- B. 73
- C. 84
- D. Couldn't be determined Discuss
- 6. The sum of the digits of a two-digit number is 14 and the difference between the two digits of the number is 2. What is the product of the two digits of the two-digit number?
Options- A. 56
- B. 48
- C. 45
- D. Couldn't be determined Discuss
- 7. 42060/15 + 5 =?
Options- A. 2804
- B. 2809
- C. 2103
- D. 289 Discuss
- 8. 9873 + x = 13200, then x is?
Options- A. 3327
- B. 3237
- C. 3337
- D. None of these Discuss
- 9. (7 + 7 + 7 ÷ 7) / (5 + 5 + 5 ÷ 5) =?
Options- A. 1
- B. 1 / 5
- C. 15 / 11
- D. 3 / 11 Discuss
- 10. [(272 - 32) (124 + 176)] / (17 x 15 - 15) =?
Options- A. 0
- B. 2.25
- C. 300
- D. None of these Discuss
Number System problems
Search Results
Correct Answer: 83
Explanation:
Let two consecutive odd number be (A + 1) and (A + 3).
According to the question.
(A + 1) (A + 3) = 6723
? A2 + 3A + A + 3 = 6723
? A2 + 4A + 3 - 6723 = 0
? A2 + 4A - 6720 = 0
? A2 + 84A - 80A - 6720 = 0
? A(A + 84) - 80 (A + 84) = 0
? (A - 80) (A + 84) = 0
? A = 80, (A = ? - 84)
Hence, the greater number = 80 + 3 = 83
Correct Answer: 5336
Explanation:
Divisor = 5 x 46 = 230
Also, 10 x Quotient = 230
? Quotient = 23
We know that
Dividend = (Divisor x Quotient ) + Remainder
? Dividend = (230 x 23) + 46
? Dividend = 5290 + 46 = 5336
Correct Answer: 210
Explanation:
Let the number be P.
According to the question,
P - P/7 = 180
? 6P/7 = 180
? P = 180 x 7/6 = 210
Correct Answer: 178
Explanation:
Number of trees that can be planted on one side of road = (Length of road/gap between two trees ) + 1
Number of trees that can be planted on one side of road = ( 1760/20 )+ 1
Number of trees that can be planted on one side of road = 88 + 1 = 89
? Threes on the both sides
= 2 x 89 = 178
Correct Answer:
Explanation:
Let ten's place digit be a and unit's place digit be a2
Original number = 10 x a + 1 x a2 = 10a + a2
The number formed by interchanging the digits,
New number = 10 x a 2 + 1 x a = 10a 2 + a
According to the question
(10a2 + a) - ( 10a + a2) = 54
? 10a2 + a - 10a - a 2 = 54
? 9a2 - 9a = 54
? 9( a2 - a) = 54
? ( a2 - a) = 54/9
? ( a2 - a) = 6
? a2 - a - 6 = 0
? a2 - 3a + 2a - 6 = 0
? a (a - 3) + 2 (a - 3) = 0
? (a - 3) (a + 2) = 0
? a = 3, - 2
? Ten,s digit = a = 3
Unit's digit = a2 = 32 = 9
Original number = 39
? Required number = 39 x 40/100 = 15.6
Correct Answer: 48
Explanation:
Let be the ten's digit be P and unit's digit be Q.
The two-digit number = 10P + Q
(where, P > Q)
According to the question,
P + Q = 14 ......(i)
and P - Q = 2 .......(ii)
solving Eqs. (i) and (ii), we get
P = 8 and Q = 6
? Required product = 8 x 6 = 48
Correct Answer: 2809
Explanation:
Given expression = 42060 / 15 + 5
= 2804 +5
=2809.
Correct Answer: 3327
Explanation:
x = 13200 - 9873 = 3327
Correct Answer: 15 / 11
Explanation:
Given expression = (7 + 7 + 7 ÷ 7) / (5 + 5 + 5 ÷ 5)
= (14 + 1) / (10 + 1)
=15 / 11
Correct Answer: 300
Explanation:
Given expression = [(272 - 32) (124 + 176)] / (17 x 15 - 15)
= (240 x 300 ) / 240
= 300
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