Question

1. If 3A = 5B and 4B = 6C then find the ratio A:C
[2]
[2]
2. Find the cardinal number of the given sets:-
a. A = {x\x=3n, new and n<12)
b. B = {x:xel, x2 <10}
3. A journey takes 4 hours and 30 minutes at a speed of 60 km/h. How
long will the same journey take at a speed of 15 m/sec?
[2]
4. Write the following set in roster form:- A={x:x=n2 - 2, new, n <4}[2]
5. Find the value of x from the following proportion: :-
[2]
1 1
:X::-:
13 2 5
6. The ratio of number of boys to the number of girls in a school of 1430
students is 7:6, if 26 new girls are admitted in the school, find how
many new boys may be admitted so that the ratio of number of boys to
the number of girls may change to 8:7
[3]
7. Write the following set in set builder form:-
1
A= .
67
[2]
1
20​

Answer 1

Answer:

Step-by-step explanation:

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