1. (1/2) (10t) = 50,000, find t in the expression?
Ans: 10,000
Explanation
given 21×10t=50,000
⇒∴21×10t×2=50,000×2 multiplying both side by 2
⇒10t=1,00,000
⇒1010t=101,00,000 dividing both side by 10
⇒t=10,000
∴ value of t in the expression is t=10,000
2. A glass that holds 0.5L will hold how many ml? Ans: 500ml
Explanation
Note that 1L = 1000 milliliters
So 0.5L = 0.5 X 1000 milliliters
= 500 milliliters
3. Fractional expression, solve 0.897?
Ans: 897/1000
Explanation
To write 0.897 as a fraction you have to write 0.897 as numerator and put 1 as the denominator. Now you
multiply numerator and denominator by 10 as long as you get in numerator the whole number.
0.897 = 0.897/1
= 8.97/10
= 89.7/100
= 897/1000
And finally we have:
0.897 as a fraction equals 897/1000
4. There are 28 students, among them 13 are boys and 15 are girls. What is boys to girls ratio? Ans: 15:13
Explanation
Total number of students =28
Number of boys, B =13
Number of girls, G =15
Boys to Girls Ratio = 13:15
5. Find 95F to C if [c=5/9(F-32)]? Ans: 35 C
Explanation
We know the relation between temperatures in Centigrade and Fahrenheit is C = 5/9
Where C = Temp in celcius & F = Temp in Fahrenheit
Here, F = 95
So C = 5/9 (95 - 32 ) = 5/9 X 63 = 35
Ans 95F = 35C