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- Question
- Four metal rods of lengths 78 cm, 104 cm, 117 cm and 169 cm are to be cut into parts of equal length. Each part must be as long as possible. What is the maximum number of pieces that can be cut?
Options- A. 27
- B. 36
- C. 43
- D. 480
- Correct Answer
- 36
ExplanationGiven, length of four metal roads are 78, 104, 117 and 169 cm.
Now,
78 = 13 x 2 x 3,
104 = 13 x 2 x 2 x 2,
117 = 13 x 3 x 3,
169 = 13 x 13
Length of each piece of rod as long as possible, HCF = 13 CM
? Number of piece = 6 + 8 + 9 + 13 = 36 - 1. Shankara buys a watch for Rs. 1,950 in cash and sells it for Rs. 2,200 at a credit of 1 year. If the rate of interest is 10% per annum, he _____ :
Options- A. gains Rs. 55
- B. gains Rs. 50
- C. loses Rs. 30
- D. gains Rs. 30 Discuss
- 2. ABCD is a rhombus with ? ABC = 56°, then ? ACD is equal to :
Options- A. 90°
- B. 60°
- C. 56°
- D. 62° Discuss
- 3. The shaded region represents
Options- A. y ? x
- B. y ? ? x
- C. y ? x
- D. y ? ? x Discuss
- 4. 45 x? = 25% of 900
Options- A. 16.20
- B. 4
- C. 5
- D. 500 Discuss
- 5. Rajan sold an articles for ? 6000 at a loss of 25%. Find the cost price.?
Options- A. ? 7500
- B. ? 7200
- C. ? 8000
- D. ? 8500 Discuss
- 6. In which of the following cases, A = B?
Options- A. A = {12, 14, 16}, B = {16, 18, 20}
- B. A = ?, b = {}
- C. A = {x: x ? W and x < 1}, B = ?
- D. A = {x: x is a day of the week beginning with S}, B = {Sunday} Discuss
- 7. 10, 25, 45, 54, 60, 75, 80
Options- A. 10
- B. 45
- C. 54
- D. 75 Discuss
- 8. If two parallel lines are intersected by a transversal, then the bisectors of the two pairs of interior angles enclose a:
Options- A. Trapezium
- B. Rectangle
- C. Square
- D. circle Discuss
- 9. ?. 6x 2 + 77x + 121 = 0
?. y 2 + 9y ? 22 = 0
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 10. The length of minute hand of a wall clock is 7 cms. The area swept by minute hand in 30 minutes is?
Options- A. 147 sq. cm
- B. 210 sq. cm
- C. 154 sq. cm
- D. 77 sq. cm Discuss
More questions
Correct Answer: gains Rs. 50
Explanation:
Correct Answer: 62°
Explanation:
Correct Answer: y ? x
Explanation:
The shaded region represents
y ? x
Correct Answer: 5
Explanation:
Let 45 x A = (25 x 900)/100
? A = (25 x 9)/45 = 5
Correct Answer: ? 8000
Explanation:
CP = [100/(100 - Loss%) ] x SP
CP = 6000 x (100/75) = 8000
Correct Answer: A = ?, b = {}
Explanation:
NA
Correct Answer: 54
Explanation:
Each of the numbers except 54 is multiple of 5.
Correct Answer: Rectangle
Explanation:
Correct Answer:
Explanation:
Correct Answer: 77 sq. cm
Explanation:
Angle swept in 30 min= 180°
Area swept = [(22/7) x 7 x 7] x [180°/360°] cm2
= 77 cm2
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