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Class 12 Organic Chemistry | Tests to Differentiate Between Types Of Alcohols | NEET 2020 | JEE 2020

In a family of five members, P is Q’s sister and R is Q’s mother. S is R’s father and T is S’s mother. How is P related to S? पांच सदस्यों वाले परिवार में P, Q की बहन हैऔर R, Q की मां है। S, R का पिता हैऔर T, S की माँ है। P, S से कैसे संबंधित है?

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Class 12 Organic Chemistry | Iodoform Test | Test for Carbonyl Compounds | NEET 2020 | JEE 2020

P is the father of Q and the grandfather of R, who is the brother of S. S’s mother, T is married to V. T is the sister of Q. How is V related to P? P, Q का पिता हैऔर R का नाना है, जो S का भाई है| S की माँ, T की शादी V से हुई है| T, Q की बहन है | V, P से किस प्रकार संबंधित है ?

If the sum of first n terms of two A.P.'s are in the ratio 3n+8 : 7n+15, then the ratio of 12th term is

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The vapour density of a gas is 11.2. The volume occupied by 11.2 gms of the gas at S.T.P is

p,q,r,s,t are first five terms of an A.P. such that P + r + t = -12 and p.q.r = 8. Find the first term of the above A.P. :

1f a person makes a profit of 10% on one-fourth of the quantity sold and a loss of 20% on the rest, then what is the average percent profit or loss? 11. 25 % los s b. 11. 75 % p rofi t c. 12. 5 % p rofi t d. 12. 5 % los s