Question

SECTION-B(2 mark Questions )

Q 1. What is probability that an ordinary year has 53 Sunday?
Q 2. What is the value of (cosa 67 - sin? 23)?
Q 3. How many two-digit numbers are divisible by 3?
​

Answer 1

Ans .. hii

1= in an ordinary year

There will 365/7 = 52.1

Means there will be 52 Sunday ..

Hence for 1 day

Probability of coming Sunday will 1/7 .

Hence probability of 53 sunday will

Be 1/7.

2=question 2 smjh m nhi aaya

3 =12,15,18,21 ..... 99

Hence( 99-12+3 )/3=n

n= 30

Follow me and mark it