GSA CSS 2023 Part-3 Complete Solutions Sir Sabir

GSA CSS 2023 Part-3 Complete Solutions Sir Sabir
Q.8. (a) Ali buys an oven for Rs. 36800 and sells it at a gain of 8.5%. For how much does he sell it? (5)
(b) A card is drawn at random from a box containing 12 cards numbered 1, 2, 3, 4, 5, …, 12. Find the probability of drawing (i) ‘8’, (ii) an even number, (iii) a perfect square, (iv) a negative number and (v) a number less than 13.
(5)
(c) The scintillation nuclear radiation detector detects the alpha rays per second. When the energy of the alpha rays (Eα) in MeV increases, the number of counts (Nc) on the detector also increases linearly as show in the table below. (5)
Eα (MeV) 0.25 0.45 0.65 1 1.4
Nc 17500 23500 29500 40000 52000
Draw a graph of Nc as a function of Eα (MeV) and find the energy of unknown alpha ray if the number of counts are 31600.
(d) The y is directly proportional to x2 and y = m for a particular value of x. Find an expression for y in terms of m, when this value of x is doubled. (5) (20)
(5) (20)
Q.8. (a) Ali buys an oven for Rs. 36800 and sells it at a gain of 8.5%. For how much does he sell it? (5)
(b) A card is drawn at random from a box containing 12 cards numbered 1, 2, 3, 4, 5, …, 12. Find the probability of drawing (i) ‘8’, (ii) an even number, (iii) a perfect square, (iv) a negative number and (v) a number less than 13.
(5)
(c) The scintillation nuclear radiation detector detects the alpha rays per second. When the energy of the alpha rays (Eα) in MeV increases, the number of counts (Nc) on the detector also increases linearly as show in the table below. (5)
Eα (MeV) 0.25 0.45 0.65 1 1.4
Nc 17500 23500 29500 40000 52000
Draw a graph of Nc as a function of Eα (MeV) and find the energy of unknown alpha ray if the number of counts are 31600.
(d) The y is directly proportional to x2 and y = m for a particular value of x. Find an expression for y in terms of m, when this value of x is doubled. (5) (20)

[@vanizeamadhubaniartanddraw6636]

Well explained sir

[@maheenbabydress3965]

jazak Allah sir your method of teaching is so good infact excellent

[@cde7336]

Jazak Allah!! Very helpful video 👍. Make more videos on past paper solutions please!! It'll be a blessing for people who can't join regular classes.

[@malahatmasood7809]

sir kya formula use krna or checker ko show krwana solution mn compulsory h ? ya direct kr skte hen ? specially in that probability question

[@rafiamubashar6551]

Isn’t 1 a perfect square? So shouldn’t we take it into account too??