Question
 The pie chart given below shows marks obtained by a
student in five different subjects P, Q, R, S and T. Total marks obtained by the student is 540. Marks in a particular subject is shown in terms of degree with respect to the total marks in all these five subjects. Â Which of the following statement(s) is/are correct? I. The subject in which the student scored 105 marks is R. II. The difference of marks between Q and S is same as difference of marks between T and R.Solution
ATQ, Statement I: Marks in R = 540 × (70/360) = 105 ⇒ Statement I is true Checking II: Marks in Q = 540 × (80/360) = 120 Marks in S = 540 × (60/360) = 90 ⇒ Q - S = 30 Marks in T = 540 × (90/360) = 135 Marks in R = 105 ⇒ T - R = 30 ⇒ Q - S = T - R ∴ Both statements I and II are true
Given the following SQL query:
SELECT department _ id, COUNT(*) AS employee _ count
FROM employees
GROUP BY department_id
HA...
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