# MOTOROLA Aptitude Questions

1. When n is divided by 6, the remainder is 4. When 2n is divided by 6, the remainder is
• 2
• 0
• 4
• 1
2. The value of is 1/20 + 1/30 + 1/42 + 1/56 + 1/72 + 1/90 is
• 1/10
• 3/5
• 3/20
• 7/20
3. Let a = 1/(2 - √3) + 1/(3 - √8) + 1/(4 - √15). Then we have
• a > 18
• a >= 18
• a = 18
• a = 9
4. The smallest among the numbers 2250, 3150, 5100 and 4200 is
• 4200
• 5100
• 3150
• 2250
5. The greatest of the following numbers 0.16, √0.16, (0.16)2, 0.04 is
• 0.16
• √0.16
• 0.04
• (0.16)2
6. If part of a journey takes 10 minutes, then to complete ( 3 / 5 )th of that journey, it will take
• 40 minutes
• 45 minutes
• 48 minutes
• 36 minutes
7. If a number is increased by 25% and the resulting number is decreased by 25%,then the percentage increase or decrease finally is
• No change
• Decreased by 614%
• Increased by 614%
• Increased by 6%
8. A reduction of 20% in the price of rice enables a customer to purchase 12.5 kg more for Rs. 800. The original price of rice per kg is
• Rs. 14
• Rs. 16/-
• Rs. 12/-
• Rs. 15/-
9. In two alloys A and B, the ratio of zinc to tin is 5 : 2 and 3 : 4 respectively. Seven kg of the alloy A and 21 kg of the alloy B are mixed together to form a new alloy. What will be the ratio of zinc and tin in the new alloy?
• 2:1
• 1:2
• 2:3
• 1:1
10. If A : B = 3 : 4 and B : C = 6 : 5, then C : A is
• 10:9
• 9:10
• 8:9
• 9:8