Easy Mathematical Puzzles - 1

Mathematical Puzzles are frequently asked in various competitive exams. These are based on various concepts of algebra, arithmetic, ratio & proportion, time & distance, etc. Here is a compilation of different maths puzzles grouped according to their level of difficulty. Each article contains a set of 10 mathematical puzzles with solutions. In this article, you will come across easy math puzzles devised to hone your mental aptitude.
Solve these easy math riddles and check your level of preparation:
Q.1. An elephant and a tiger were carrying full sacks on their backs. The elephant started complaining that his load was too heavy. The tiger said to him "Why are you complaining? If you gave me one of your sacks I'd have double what you have and if I give you one of my sacks we'd have an even amount." How many sacks were each of them carrying? Give the minimal possible answer.
Q.2. On Monday,Kapoor ate half parantha. He ate half of what was left on Tuesday and so on. He followed this pattern for one week. How much of the parantha would he have eaten during the week?
Q.3. Hari's age is three years more than four times Rakesh's age. After five years, Hari's age will be one year more than thrice Rakesh's age. What is Hari's present age?
Q.4. The ratio of employees to managers is 7: 3. 70% of the employees and 30% of the managers take lunch in the canteen. What % of total workforce takes lunch in canteen?
Q.5. What 5-digit number has the following features:
If we put the numeral 2 at the end of the number, we get a number which is three times a number if we put the numeral 2 at the beginning?
Q.6. A three-digit whole number n is such that the last three digits of n2 are in fact the original number n. How many such n are there?
Q.7. Rishab asked his Grandfather how old he was. Rather than giving him a straight answer, he replied: "I have 6 children, and there are 4 years between each one and the next. I had my first child (your Uncle Ravi) when I was 29. Now the youngest one (your Auntie Ramita) is 29 herself. That's all I'm telling you!" How old is Rishab's grandfather?
Q.8. What is the smallest number which when divided by 35 leaves remainder 30 ,when divided by 45 leaves remainder 40 and when divided by 55 leaves remainder 50?
Q.9. If Etti can swim 4 miles downstream (with the current) in a river in 20 minutes, & upstream 1 mile (against the current) in 15 minutes, how long would it take her to swim a mile in still water?
Q.10.
2 3 4
6 7 8
10 11 12
58 74 ?
A. 91
B. 90
C. 96
D. 92