“Optical Illusions- Book” has been added to your cart. Continue shopping Product Price Quantity Subtotal ∑n2 = n(n+1)(2n+1)/6 ₹440.00 ∑n2 = n(n+1)(2n+1)/6 quantity ₹440.00 Pegboard Puzzle ₹200.00 Pegboard Puzzle quantity ₹200.00 Optical Illusions- Book ₹90.00 Optical Illusions- Book quantity ₹90.00 Coupon: Cart Totals Subtotal ₹730.00 9% CGST ₹39.60 9% SGST ₹39.60 2.5% CGST ₹5.00 2.5% SGST ₹5.00 Total ₹819.00 Continue Shopping Checkout