**Maths Short Tricks For Competitive Exam**

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## Question Answer

**1. The average of first 50 natural numbers is …………..**

**3. The number of 3-digit numbers divisible by 6, is ………….. .**

**5. A clock strikes once at 1 o’clock, twice at 2 o’clock, thrice at 3 o’clock and so on. How many times will it strike in 24 hours?**

**8. The simplest form of 1.5: 2.5 is …………….**

**9. 125 gallons of a mixture contains 20% water. What amount of additional water should be added such that water content is raised to 25%?**

^{15}/

_{2}gallons.

^{17}/

_{2}gallons.

^{19}/

_{2}gallons.

^{1}/

_{3}gallons.