Start learning 50% faster. Sign in now
In school A, Let total number of pencils and pens used be px and qx respectively. According to the question, => px – qx = 40 => 120 – qx = 40 => qx = 80 Ratio = px : qx = 120 : 80 = 3:2 Total number of pencils used = px = 120 Total number of pens used = qx = 80 In school B, Let total number of pencils and pens used be 3x and 2x respectively. According to the question, => 3x – 2x = 90 => x = 90 So, 3x = 270 and 2x = 180 Now, (m2 + 45) = 270 => m2 = 225 => m = 15 Total number of pencils used = 3x = 270 Total number of pens used = 2x = 180 In school C, Let total number of pencils and pens used be gx and hx respectively. According to the question, => gx = 8m – 70 => gx = (8 × 15) – 70 => gx = 50 So, hx = 50 – 20 = 30 Ratio = gx : hx = 50 : 30 = 5:3 Total number of pencils used = gx = 50 Total number of pens used = hx = 30 In school D, Let total number of pencils and pens used be tx and x respectively. According to the question, => tx = 75 So, tx – x = 50 => 75 - x = 50 => x = 25 Ratio = tx : x = 75 : 25 = 3:1 Total number of pencils used = tx = 75 Total number of pens used = x = 25 Required % = [(120 – 75)/75] × 100 = 60%
Which of the following caves was repurposed as a Christian cave?
In which year was India declared Open Defecation Free (ODF) under the Swachh Bharat Mission?
King Harshavardhana ascended the throne of Thaneshwar and Kannauj on the death of his brother, _______.
Eiffel Tower' is related to 'France', in the same way as 'Statue of Liberty' is related to '____'.
RBI imposed Rs 1 crore penalty on State Bank of Travancore for violating instructions as reported by which rating agency?
‘Miyan Ka Bada’ railway station has been renamed as “Mahesh Nagar Halt” in which state of India?
SMERA, a rating agency is established by –
Which unit of measurement when multiplied by 0.39 gives one inch?
Which country became the first to approve a malaria vaccine in 2023?
Who is the author of the book The Golden House?