(Q) The age of a man is twice the square of the age of his son. Eight years hence, the age of the man will be 4 years more than three times the age of his son. Find their present ages. Ans: Let’s consider the present age of Father is X and present age of […]
NCERT book maths class 10th
Q. Three years ago, Rashmi was thrice as old as Nazma. Ten years later, Rashmi will be twice as old as Nazma. How old are Rashmi and Nazma now? Ans: Let’s consider Rashmi’s present age be X and Nazma’s present age be Y Hence, Rashmi’s age 3 years ago = X – 3 Nazma’s age
Three years ago, Rashmi was thrice as old as Nazma. Ten years later, Rashmi will be Read More »
Q) Which of the following are APs? If they form an AP, find the common difference d and write three more terms. (viii) – 1/2, – 1/2, – 1/2, – 1/2, … Ans: Here we are given a sequence and we need to determine if the sequence qualifies to be an AP or not. After
Q) Which of the following are APs? If they form an AP, find the common difference d and write three more terms. (vi) 0.2, 0.22, 0.222, 0.2222, … Ans: Here we are given a sequence and we need to determine if the sequence qualifies to be an AP or not. After that, we need to
Q) Which of the following are APs? If they form an AP, find the common difference d and write three more terms. v) 3, 3 + √2, 3 + 2√2, 3 + 3√2, … Ans: Here we are given a sequence and we need to determine if the sequence qualifies to be an AP or
Q) Which of the following are APs? If they form an AP, find the common difference d and write three more terms. iii) – 1.2, – 3.2, – 5.2, – 7.2, … Ans: Here we are given a sequence and we need to determine if the sequence qualifies to be an AP or not. After
Q) Which of the following are APs? If they form an AP, find the common difference d and write three more terms. (ii) 2, 5/2 ,3, 7/2, … Ans: Here we are given a sequence and we need to determine if the sequence qualifies to be an AP or not. After that, we need to
Q) For the following APs, write the first term and the common difference: (iv) 0.6, 1.7, 2.8, 3.9,… Ans: Here we are given AP and we need to find the first term a and common difference d. Now, first term of the AP, a1 = 0.6 (by observation) Further we can see that a2 = 1.7
5.1.3 (iv) For the following APs, write the first term and the common difference: Read More »
Q) For the following APs, write the first term and the common difference: (iii) ,…. Ans: Here we are given AP and we need to find the first term a and common difference d. Now, first term of the AP, (by observation) Further we can see that and Common difference is the difference between
Q) For the following APs, write the first term and the common difference: (ii) – 5, – 1, 3, 7…. Ans: Here we are given AP and we need to find the first term a and common difference d. Now, first term of the AP, a1 = – 5 (by observation) Further we can see